diff --git a/migration/__init__.py b/migration/__init__.py
index a998ad07..c59e3ec4 100644
--- a/migration/__init__.py
+++ b/migration/__init__.py
@@ -11,6 +11,7 @@ from migration.tables.content_items import get_shout_slug
 from migration.tables.content_items import migrate as migrateShout
 from migration.tables.topics import migrate as migrateTopic
 from migration.tables.users import migrate as migrateUser
+from migration.tables.remarks import migrate as migrateRemark
 from migration.tables.users import migrate_2stage as migrateUser_2stage
 from orm.reaction import Reaction
 from orm import init_tables
@@ -135,6 +136,15 @@ async def shouts_handle(storage, args):
     print("[migration] " + str(anonymous_author) + " authored by @anonymous")
 
 
+async def remarks_handle(storage):
+    print("[migration] comments")
+    c = 0
+    for entry_remark in storage["remarks"]["data"]:
+        remark = await migrateRemark(entry_remark, storage)
+        c += 1
+    print("[migration] " + str(c) + " remarks migrated")
+
+
 async def comments_handle(storage):
     print("[migration] comments")
     id_map = {}
@@ -170,6 +180,8 @@ async def all_handle(storage, args):
     await topics_handle(storage)
     print("[migration] users and topics are migrated")
     await shouts_handle(storage, args)
+    print("[migration] remarks...")
+    await remarks_handle(storage)
     print("[migration] migrating comments")
     await comments_handle(storage)
     # export_email_subscriptions()
@@ -190,6 +202,7 @@ def data_load():
             "cats": [],
             "tags": [],
         },
+        "remarks": {"data": []},
         "users": {"by_oid": {}, "by_slug": {}, "data": []},
         "replacements": json.loads(open("migration/tables/replacements.json").read()),
     }
@@ -210,6 +223,11 @@ def data_load():
         content_data = json.loads(open("migration/data/content_items.json").read())
         storage["shouts"]["data"] = content_data
         print("[migration.load] " + str(len(content_data)) + " content items ")
+
+        remarks_data = json.loads(open("migration/data/remarks.json").read())
+        storage["remarks"]["data"] = remarks_data
+        print("[migration.load] " + str(len(remarks_data)) + " remarks data ")
+
         # fill out storage
         for x in users_data:
             storage["users"]["by_oid"][x["_id"]] = x
diff --git a/migration/tables/remarks.py b/migration/tables/remarks.py
new file mode 100644
index 00000000..78f52c92
--- /dev/null
+++ b/migration/tables/remarks.py
@@ -0,0 +1,31 @@
+from base.orm import local_session
+from migration.extract import extract_md
+from migration.html2text import html2text
+from orm.remark import Remark
+
+
+def migrate(entry, storage):
+    post_oid = entry['contentItem']
+    print(post_oid)
+    shout_dict = storage['shouts']['by_oid'].get(post_oid)
+    remark = {
+        "shout": shout_dict['id'],
+        "body": extract_md(
+            html2text(entry['body']),
+            entry['_id']
+        ),
+        "desc": extract_md(
+            html2text(
+                entry['textAfter'] or '' + \
+                entry['textBefore'] or '' + \
+                entry['textSelected'] or ''
+            ),
+            entry["_id"]
+        )
+    }
+
+    with local_session() as session:
+        rmrk = Remark.create(**remark)
+        session.commit()
+        del rmrk["_sa_instance_state"]
+        return rmrk
diff --git a/orm/collab.py b/orm/collab.py
deleted file mode 100644
index aa71004c..00000000
--- a/orm/collab.py
+++ /dev/null
@@ -1,27 +0,0 @@
-from datetime import datetime
-
-from sqlalchemy import Column, ForeignKey, DateTime, String
-from sqlalchemy.orm import relationship
-from base.orm import Base
-from orm.user import User
-
-
-class CollabAuthor(Base):
-    __tablename__ = "collab_author"
-
-    id = None  # type: ignore
-    collab = Column(ForeignKey("collab.id"), primary_key=True)
-    author = Column(ForeignKey("user.id"), primary_key=True)
-    # accepted = Column(Boolean, default=False)
-
-
-class Collab(Base):
-    __tablename__ = "collab"
-
-    title = Column(String, nullable=True, comment="Title")
-    body = Column(String, nullable=True, comment="Body")
-    pic = Column(String, nullable=True, comment="Picture")
-    authors = relationship(lambda: User, secondary=CollabAuthor.__tablename__)
-    # invites = relationship(lambda: User, secondary=CollabInvited.__tablename__)
-    createdAt = Column(DateTime, default=datetime.now, comment="Created At")
-    chat = Column(String, unique=True, nullable=False)
diff --git a/orm/draft.py b/orm/draft.py
new file mode 100644
index 00000000..6b97e5c3
--- /dev/null
+++ b/orm/draft.py
@@ -0,0 +1,40 @@
+from datetime import datetime
+
+from sqlalchemy import Boolean, Column, ForeignKey, DateTime, String
+from sqlalchemy.orm import relationship
+from base.orm import Base
+from orm.user import User
+from orm.topic import Topic
+
+
+class DraftTopic(Base):
+    __tablename__ = "draft_topic"
+
+    id = None  # type: ignore
+    collab = Column(ForeignKey("draft_collab.id"), primary_key=True)
+    topic = Column(ForeignKey("topic.id"), primary_key=True)
+
+
+class DraftAuthor(Base):
+    __tablename__ = "draft_author"
+
+    id = None  # type: ignore
+    collab = Column(ForeignKey("draft_collab.id"), primary_key=True)
+    author = Column(ForeignKey("user.id"), primary_key=True)
+    accepted = Column(Boolean, default=False)
+
+
+class DraftCollab(Base):
+    __tablename__ = "draft_collab"
+
+    slug = Column(String, nullable=True, comment="Slug")
+    title = Column(String, nullable=True, comment="Title")
+    subtitle = Column(String, nullable=True, comment="Subtitle")
+    layout = Column(String, nullable=True, comment="Layout format")
+    body = Column(String, nullable=True, comment="Body")
+    cover = Column(String, nullable=True, comment="Cover")
+    authors = relationship(lambda: User, secondary=DraftAuthor.__tablename__)
+    topics = relationship(lambda: Topic, secondary=DraftTopic.__tablename__)
+    createdAt = Column(DateTime, default=datetime.now, comment="Created At")
+    updatedAt = Column(DateTime, default=datetime.now, comment="Updated At")
+    chat = Column(String, unique=True, nullable=True)
diff --git a/orm/remark.py b/orm/remark.py
new file mode 100644
index 00000000..9432a3f5
--- /dev/null
+++ b/orm/remark.py
@@ -0,0 +1,15 @@
+from datetime import datetime
+from enum import Enum as Enumeration
+
+from sqlalchemy import Column, DateTime, Enum, ForeignKey, String
+
+from base.orm import Base
+
+
+class Remark(Base):
+
+    __tablename__ = "remark"
+
+    body = Column(String, nullable=False)
+    desc = Column(String, default='')
+    shout = Column(ForeignKey("shout.id"), nullable=True, index=True, comment="Shout")
diff --git a/orm/shout.py b/orm/shout.py
index 55435d5f..04b0102b 100644
--- a/orm/shout.py
+++ b/orm/shout.py
@@ -50,7 +50,7 @@ class Shout(Base):
     subtitle = Column(String, nullable=True)
     layout = Column(String, nullable=True)
     mainTopic = Column(ForeignKey("topic.slug"), nullable=True)
-    cover = Column(String, nullable=True)
+    cover = Column(String, nullable=True, comment="Cover")
     authors = relationship(lambda: User, secondary=ShoutAuthor.__tablename__)
     topics = relationship(lambda: Topic, secondary=ShoutTopic.__tablename__)
     reactions = relationship(lambda: Reaction)
diff --git a/resolvers/__init__.py b/resolvers/__init__.py
index e35f8ba4..5837f767 100644
--- a/resolvers/__init__.py
+++ b/resolvers/__init__.py
@@ -8,7 +8,8 @@ from resolvers.auth import (
     get_current_user,
 )
 
-from resolvers.create.collab import remove_coauthor, invite_coauthor
+from resolvers.create.collab import load_drafts, create_draft, update_draft, delete_draft,\
+    accept_coauthor, invite_coauthor
 from resolvers.create.migrate import markdown_body
 from resolvers.create.editor import create_shout, delete_shout, update_shout
 
@@ -93,8 +94,12 @@ __all__ = [
     # create.migrate
     "markdown_body",
     # create.collab
+    "load_drafts",
+    "create_draft",
+    "update_draft",
+    "delete_draft",
     "invite_coauthor",
-    "remove_coauthor",
+    "accept_coauthor",
     # zine.topics
     "topics_all",
     "topics_by_community",
diff --git a/resolvers/create/collab.py b/resolvers/create/collab.py
index c51c9be2..f8b1c8a7 100644
--- a/resolvers/create/collab.py
+++ b/resolvers/create/collab.py
@@ -3,84 +3,130 @@ from auth.credentials import AuthCredentials
 from base.orm import local_session
 from base.resolvers import query, mutation
 from base.exceptions import ObjectNotExist, BaseHttpException
-from orm.collab import Collab, CollabAuthor
+from orm.draft import DraftCollab, DraftAuthor, DraftTopic
 from orm.shout import Shout
 from orm.user import User
 
 
-@query.field("getCollabs")
+@query.field("loadDrafts")
 @login_required
-async def get_collabs(_, info):
+async def load_drafts(_, info):
+    auth: AuthCredentials = info.context["request"].auth
+    drafts = []
+    with local_session() as session:
+        drafts = session.query(DraftCollab).filter(auth.user_id in DraftCollab.authors)
+        return drafts
+
+
+@mutation.field("createDraft") # TODO
+@login_required
+async def create_draft(_, info, draft_input):
     auth: AuthCredentials = info.context["request"].auth
 
     with local_session() as session:
-        collabs = session.query(Collab).filter(auth.user_id in Collab.authors)
-        return collabs
+        collab = DraftCollab.create(**draft_input)
+        session.add(collab)
+        session.commit()
 
-
-@mutation.field("inviteCoauthor")
-@login_required
-async def invite_coauthor(_, info, author: int = 0, shout: int = 0):
-    auth: AuthCredentials = info.context["request"].auth
-
-    with local_session() as session:
-        s = session.query(Shout).where(Shout.id == shout).one()
-        if not s:
-            raise ObjectNotExist("invalid shout id")
-        else:
-            c = session.query(Collab).where(Collab.shout == shout).one()
-            if auth.user_id not in c.authors:
-                raise BaseHttpException("you are not in authors list")
-            else:
-                invited_user = session.query(User).where(User.id == author).one()
-                c.invites.append(invited_user)
-                session.add(c)
-                session.commit()
-
-    # TODO: email notify
+    # TODO: email notify to all authors
     return {}
 
 
-@mutation.field("removeCoauthor")
+@mutation.field("deleteDraft") # TODO
 @login_required
-async def remove_coauthor(_, info, author: int = 0, shout: int = 0):
+async def delete_draft(_, info, draft: int = 0):
     auth: AuthCredentials = info.context["request"].auth
 
     with local_session() as session:
-        s = session.query(Shout).where(Shout.id == shout).one()  # raises Error when not found
+        collab = session.query(DraftCollab).where(DraftCollab.id == draft_input.id).one()
         if auth.user_id not in s.authors:
-            raise BaseHttpException("only owner can remove coauthors")
+            # raise BaseHttpException("only owner can remove coauthors")
+            return {
+                "error": "Only authors can update a draft"
+            }
+        elif not collab:
+            return {
+                "error": "There is no draft with this id"
+            }
         else:
-            c = session.query(Collab).where(Collab.shout == shout).one()
-            ca = session.query(CollabAuthor).join(User).where(c.shout == shout, User.id == author).one()
-            session.remve(ca)
-            c.invites = filter(lambda x: x.id == author, c.invites)
-            c.authors = filter(lambda x: x.id == author, c.authors)
-            session.add(c)
+            session.delete(collab)
+            session.commit()
+            return {}
+
+
+@mutation.field("updateDraft") # TODO: draft input type
+@login_required
+async def update_draft(_, info, draft_input):
+    auth: AuthCredentials = info.context["request"].auth
+
+    with local_session() as session:
+        collab = session.query(DraftCollab).where(DraftCollab.id == draft_input.id).one()  # raises Error when not found
+        if auth.user_id not in s.authors:
+            # raise BaseHttpException("only owner can remove coauthors")
+            return {
+                "error": "Only authors can update draft"
+            }
+        elif not s:
+            return {
+                "error": "There is no draft with this id"
+            }
+        else:
+            draft_input["updatedAt"] = datetime.now(tz=timezone.utc)
+            collab.update(draft_input)
             session.commit()
 
     # TODO: email notify
     return {}
 
-
-@mutation.field("acceptCoauthor")
+@mutation.field("inviteAuthor")
 @login_required
-async def accept_coauthor(_, info, shout: int):
+async def invite_coauthor(_, info, author: int = 0, draft: int = 0):
     auth: AuthCredentials = info.context["request"].auth
 
     with local_session() as session:
-        s = session.query(Shout).where(Shout.id == shout).one()
-        if not s:
-            raise ObjectNotExist("invalid shout id")
+        c = session.query(DraftCollab).where(DraftCollab.id == draft).one()
+        if auth.user_id not in c.authors:
+            # raise BaseHttpException("you are not in authors list")
+            return {
+                "error": "You are not in authors list"
+            }
+        elif c.id:
+            invited_user = session.query(User).where(User.id == author).one()
+            da = DraftAuthor.create({
+                "accepted": False,
+                "collab": c.id,
+                "author": invited_user.id
+            })
+            session.add(da)
+            session.commit()
         else:
-            c = session.query(Collab).where(Collab.shout == shout).one()
-            accepted = filter(lambda x: x.id == auth.user_id, c.invites).pop()
-            if accepted:
-                c.authors.append(accepted)
-                s.authors.append(accepted)
-                session.add(s)
-                session.add(c)
-                session.commit()
-                return {}
-            else:
-                raise BaseHttpException("only invited can accept")
+            return {
+                "error": "Draft is not found"
+            }
+
+    # TODO: email notify
+    return {}
+
+
+@mutation.field("inviteAccept")
+@login_required
+async def accept_coauthor(_, info, draft: int):
+    auth: AuthCredentials = info.context["request"].auth
+
+    with local_session() as session:
+        # c = session.query(DraftCollab).where(DraftCollab.id == draft).one()
+        a = session.query(DraftAuthor).where(DraftAuthor.collab == draft).filter(DraftAuthor.author == auth.user_id).one()
+        if not a.accepted:
+            a.accepted = True
+            session.commit()
+            # TODO: email notify
+            return {}
+        elif a.accepted == True:
+            return {
+                "error": "You have accepted invite before"
+            }
+        else:
+            # raise BaseHttpException("only invited can accept")
+            return {
+                "error": "You don't have an invitation yet"
+            }
diff --git a/resolvers/create/editor.py b/resolvers/create/editor.py
index 84d744a4..a2b321ca 100644
--- a/resolvers/create/editor.py
+++ b/resolvers/create/editor.py
@@ -14,7 +14,7 @@ from resolvers.zine.reactions import reactions_follow, reactions_unfollow
 from services.zine.gittask import GitTask
 from resolvers.inbox.chats import create_chat
 from services.inbox.storage import MessagesStorage
-from orm.collab import Collab
+from orm.draft import DraftCollab
 
 
 @mutation.field("createShout")
diff --git a/resolvers/zine/profile.py b/resolvers/zine/profile.py
index 3b6e630f..c70106df 100644
--- a/resolvers/zine/profile.py
+++ b/resolvers/zine/profile.py
@@ -218,10 +218,13 @@ def author_unfollow(user_id, slug):
             ).first()
         )
         if not flw:
-            raise Exception("[resolvers.profile] follower not exist, cant unfollow")
+            return {
+                "error": "Follower is not exist, cant unfollow"
+            }
         else:
             session.delete(flw)
             session.commit()
+            return {}
 
 
 @query.field("authorsAll")
diff --git a/resolvers/zine/reactions.py b/resolvers/zine/reactions.py
index 92b86935..f935920c 100644
--- a/resolvers/zine/reactions.py
+++ b/resolvers/zine/reactions.py
@@ -196,7 +196,7 @@ async def update_reaction(_, info, reaction={}):
 
         if not r:
             return {"error": "invalid reaction id"}
-        if r.createdBy != user.slug:
+        if r.createdBy != user.id:
             return {"error": "access denied"}
 
         r.body = reaction["body"]
diff --git a/resolvers/zine/remark.py b/resolvers/zine/remark.py
new file mode 100644
index 00000000..6f5f9d48
--- /dev/null
+++ b/resolvers/zine/remark.py
@@ -0,0 +1,48 @@
+
+from datetime import datetime, timedelta, timezone
+from sqlalchemy.orm import joinedload, aliased
+from sqlalchemy.sql.expression import desc, asc, select, func
+from base.orm import local_session
+from base.resolvers import query, mutation
+from base.exceptions import ObjectNotExist
+from orm.remark import Remark
+
+
+@mutation.field("createRemark")
+@login_required
+async def create_remark(_, info, slug, body):
+    auth = info.context["request"].auth
+    user_id = auth.user_id
+    with local_session() as session:
+        tt = Remark.create(slug=slug, body=body)
+        session.commit()
+        return
+
+@mutation.field("updateRemark")
+@login_required
+async def update_remark(_, info, slug, body = ''):
+    auth = info.context["request"].auth
+    user_id = auth.user_id
+    with local_session() as session:
+        rmrk = session.query(Remark).where(Remark.slug == slug).one()
+        if body:
+            tt.body = body
+            session.add(rmrk)
+        session.commit()
+        return
+
+@mutation.field("deleteRemark")
+@login_required
+async def delete_remark(_, info, slug):
+    auth = info.context["request"].auth
+    user_id = auth.user_id
+    with local_session() as session:
+        rmrk = session.query(Remark).where(Remark.slug == slug).one()
+        rmrk.remove()
+        session.commit()
+        return
+
+@query.field("loadRemark")
+@login_required
+async def load_remark(_, info, slug):
+    pass
diff --git a/schema.graphql b/schema.graphql
index 015f2b02..080cb371 100644
--- a/schema.graphql
+++ b/schema.graphql
@@ -69,6 +69,7 @@ type Result {
   members: [ChatMember]
   shout: Shout
   shouts: [Shout]
+  drafts: [DraftCollab]
   author: Author
   authors: [Author]
   reaction: Reaction
@@ -128,6 +129,17 @@ input TopicInput {
   # parents: [String]
 }
 
+input DraftInput {
+    slug: String
+    topics: [Int]
+    authors: [Int]
+    title: String
+    subtitle: String
+    body: String
+    cover: String
+
+}
+
 input ReactionInput {
   kind: ReactionKind!
   shout: Int!
@@ -189,10 +201,12 @@ type Mutation {
   updateReaction(reaction: ReactionInput!): Result!
   deleteReaction(reaction: Int!): Result!
 
-  # collab
-  inviteCoauthor(author: String!, shout: Int!): Result!
-  removeCoauthor(author: String!, shout: Int!): Result!
-  acceptCoauthor(shout: Int!): Result!
+  # draft / collab
+  createDraft(draft: DraftInput!): Result!
+  updateDraft(draft: DraftInput!): Result!
+  deleteDraft(draft: Int!): Result!
+  inviteAccept(draft: Int!): Result!
+  inviteAuthor(draft: Int!, author: Int!): Result!
 
   # following
   follow(what: FollowingEntity!, slug: String!): Result!
@@ -289,8 +303,8 @@ type Query {
   authorsAll: [Author]!
   getAuthor(slug: String!): User
 
-  # collab
-  getCollabs: [Collab]!
+  # draft/collab
+  loadDrafts: [DraftCollab]!
 
   # migrate
   markdownBody(body: String!): String!
@@ -525,10 +539,16 @@ type Chat {
   private: Boolean
 }
 
-type Collab {
- authors: [String]!
- invites: [String]
- shout: Shout
+type DraftCollab {
+ slug: String
+ title: String
+ subtitle: String
+ body: String
+ cover: String
+ layout: String
+ authors: [Int]!
+ topics: [String]
  chat: Chat
  createdAt: Int!
+ updatedAt: Int
 }