diff --git a/orm/draft.py b/orm/draft.py
index 87ee3a8a..6b97e5c3 100644
--- a/orm/draft.py
+++ b/orm/draft.py
@@ -1,22 +1,31 @@
 from datetime import datetime
 
-from sqlalchemy import Column, ForeignKey, DateTime, String
+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__ = "collab_author"
+    __tablename__ = "draft_author"
 
     id = None  # type: ignore
-    collab = Column(ForeignKey("collab.id"), primary_key=True)
+    collab = Column(ForeignKey("draft_collab.id"), primary_key=True)
     author = Column(ForeignKey("user.id"), primary_key=True)
-    # accepted = Column(Boolean, default=False)
+    accepted = Column(Boolean, default=False)
 
 
 class DraftCollab(Base):
-    __tablename__ = "draftcollab"
+    __tablename__ = "draft_collab"
 
     slug = Column(String, nullable=True, comment="Slug")
     title = Column(String, nullable=True, comment="Title")
@@ -25,8 +34,7 @@ class DraftCollab(Base):
     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=ShoutTopic.__tablename__)
-    invites = relationship(lambda: User, secondary=CollabInvited.__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/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 74356a29..3fe4a169 100644
--- a/resolvers/create/collab.py
+++ b/resolvers/create/collab.py
@@ -3,33 +3,33 @@ 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.draft import DraftCollab, CollabAuthor
+from orm.draft import DraftCollab, DraftAuthor, DraftTopic
 from orm.shout import Shout
 from orm.user import User
 
 
-# TODO: use updatedAt
-
-
 @query.field("loadDrafts")
 @login_required
-async def get_drafts(_, 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": drafts
-    }
+        return drafts
 
 
 @mutation.field("createDraft") # TODO
 @login_required
-async def create_draft(_, info):
+async def create_draft(_, info, draft_input):
     auth: AuthCredentials = info.context["request"].auth
 
     with local_session() as session:
-    pass
+        collab = DraftCollab.create(**draft_input)
+        session.add(collab)
+        session.commit()
+
+    # TODO: email notify to all authors
+    return {}
 
 
 @mutation.field("deleteDraft") # TODO
@@ -38,15 +38,29 @@ async def delete_draft(_, info, draft: int = 0):
     auth: AuthCredentials = info.context["request"].auth
 
     with local_session() as session:
-    pass
+        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")
+            return {
+                "error": "Only authors can update a draft"
+            }
+        elif not collab:
+            return {
+                "error": "There is no draft with this id"
+            }
+        else:
+            session.delete(collab)
+            session.commit()
+            return {}
 
-@mutation.field("updateDraft") # TODO
+
+@mutation.field("updateDraft") # TODO: draft input type
 @login_required
-async def update_draft(_, info, author: int = 0, draft: int = 0):
+async def update_draft(_, info, draft_input):
     auth: AuthCredentials = info.context["request"].auth
 
     with local_session() as session:
-        s = session.query(DraftCollab).where(DraftCollab.id == draft).one()  # raises Error when not found
+        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 {
@@ -57,12 +71,8 @@ async def update_draft(_, info, author: int = 0, draft: int = 0):
                 "error": "There is no draft with this id"
             }
         else:
-            c = session.query(DraftCollab).where(DraftCollab.id == draft).one()
-            ca = session.query(CollabAuthor).join(User).where(c.id == draft).filter(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)
+            draft_input["updatedAt"] = datetime.now(tz=timezone.utc)
+            collab.update(**draft_input)
             session.commit()
 
     # TODO: email notify
@@ -80,11 +90,19 @@ async def invite_coauthor(_, info, author: int = 0, draft: int = 0):
             return {
                 "error": "You are not in authors list"
             }
-        else:
+        elif c.id:
             invited_user = session.query(User).where(User.id == author).one()
-            c.invites.append(invited_user)
-            session.add(c)
+            da = DraftAuthor.create({
+                "accepted": False,
+                "collab": c.id,
+                "author": invited_user.id
+            })
+            session.add(da)
             session.commit()
+        else:
+            return {
+                "error": "Draft is not found"
+            }
 
     # TODO: email notify
     return {}
@@ -96,13 +114,17 @@ 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()
-        accepted = filter(lambda x: x.id == auth.user_id, c.invites).pop()
-        if accepted:
-            c.authors.append(accepted)
-            session.add(c)
+        # 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 {
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 580e5b9e..8cd68453 100644
--- a/resolvers/zine/profile.py
+++ b/resolvers/zine/profile.py
@@ -219,10 +219,13 @@ 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/schema.graphql b/schema.graphql
index 8c23a618..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
@@ -538,10 +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
 }