diff --git a/c#/crawler/src/Db/CrawlerDbContext.cs b/c#/crawler/src/Db/CrawlerDbContext.cs
index 4942f0ce..41d2aac1 100644
--- a/c#/crawler/src/Db/CrawlerDbContext.cs
+++ b/c#/crawler/src/Db/CrawlerDbContext.cs
@@ -69,12 +69,10 @@ protected override void OnModelCreating(ModelBuilder b)
         b.Entity<User>().ToTable("tbmc_user");
         b.Entity<ThreadPost>().ToTable($"tbmc_f{Fid}_thread");
         b.Entity<ThreadMissingFirstReply>().ToTable("tbmc_thread_missingFirstReply");
-        b.Entity<ReplyPost>().ToTable($"tbmc_f{Fid}_reply")
-            .HasOne(e => e.Content).WithOne().HasForeignKey<ReplyContent>(e => e.Pid);
+        b.Entity<ReplyPost>().ToTable($"tbmc_f{Fid}_reply");
         b.Entity<ReplyContent>().ToTable($"tbmc_f{Fid}_reply_content");
         b.Entity<ReplySignature>().ToTable("tbmc_reply_signature").HasKey(e => new {e.SignatureId, e.XxHash3});
-        b.Entity<SubReplyPost>().ToTable($"tbmc_f{Fid}_subReply")
-            .HasOne(e => e.Content).WithOne().HasForeignKey<SubReplyContent>(e => e.Spid);
+        b.Entity<SubReplyPost>().ToTable($"tbmc_f{Fid}_subReply");
         b.Entity<SubReplyContent>().ToTable($"tbmc_f{Fid}_subReply_content");
 
         _ = new RevisionWithSplitting<BaseThreadRevision>
diff --git a/c#/crawler/src/Db/Post/PostWithContentAndAuthorExpGrade.cs b/c#/crawler/src/Db/Post/PostWithContentAndAuthorExpGrade.cs
index b3affdd5..769ff9fa 100644
--- a/c#/crawler/src/Db/Post/PostWithContentAndAuthorExpGrade.cs
+++ b/c#/crawler/src/Db/Post/PostWithContentAndAuthorExpGrade.cs
@@ -1,10 +1,9 @@
 // ReSharper disable PropertyCanBeMadeInitOnly.Global
 namespace tbm.Crawler.Db.Post;
 
-public abstract class PostWithContentAndAuthorExpGrade<TPostContent> : PostWithAuthorExpGrade
-    where TPostContent : BasePostContent
+public abstract class PostWithContentAndAuthorExpGrade : PostWithAuthorExpGrade
 {
-    public required TPostContent Content { get; set; }
+    [NotMapped] public byte[]? Content { get; set; }
 
     [JsonConverter(typeof(ProtoBufRepeatedFieldJsonConverter<Content>))]
     [NotMapped]
diff --git a/c#/crawler/src/Db/Post/ReplyPost.cs b/c#/crawler/src/Db/Post/ReplyPost.cs
index 0bd86c75..5f2fa4b4 100644
--- a/c#/crawler/src/Db/Post/ReplyPost.cs
+++ b/c#/crawler/src/Db/Post/ReplyPost.cs
@@ -1,7 +1,7 @@
 // ReSharper disable PropertyCanBeMadeInitOnly.Global
 namespace tbm.Crawler.Db.Post;
 
-public class ReplyPost : PostWithContentAndAuthorExpGrade<ReplyContent>
+public class ReplyPost : PostWithContentAndAuthorExpGrade
 {
     [Key] [Column(TypeName = "bigint")]
     public ulong Pid { get; set; }
diff --git a/c#/crawler/src/Db/Post/SubReplyPost.cs b/c#/crawler/src/Db/Post/SubReplyPost.cs
index c7ff4abd..30ba0a8e 100644
--- a/c#/crawler/src/Db/Post/SubReplyPost.cs
+++ b/c#/crawler/src/Db/Post/SubReplyPost.cs
@@ -1,7 +1,7 @@
 // ReSharper disable PropertyCanBeMadeInitOnly.Global
 namespace tbm.Crawler.Db.Post;
 
-public class SubReplyPost : PostWithContentAndAuthorExpGrade<SubReplyContent>
+public class SubReplyPost : PostWithContentAndAuthorExpGrade
 {
     [Column(TypeName = "bigint")]
     public ulong Pid { get; set; }
diff --git a/c#/crawler/src/Tieba/Crawl/Parser/Post/ReplyParser.cs b/c#/crawler/src/Tieba/Crawl/Parser/Post/ReplyParser.cs
index 10956655..2069b686 100644
--- a/c#/crawler/src/Tieba/Crawl/Parser/Post/ReplyParser.cs
+++ b/c#/crawler/src/Tieba/Crawl/Parser/Post/ReplyParser.cs
@@ -14,21 +14,13 @@ protected override IEnumerable<ReplyPost> ParseInternal
 
     protected override ReplyPost Convert(Reply inPost)
     {
-        var o = new ReplyPost
-        {
-            Content = null!, // will get mutated by SimplifyImagesInReplyContent()
-            ContentsProtoBuf = inPost.Content
-        };
+        var o = new ReplyPost {ContentsProtoBuf = inPost.Content};
         try
         {
             o.Pid = inPost.Pid;
             o.Floor = inPost.Floor;
             SimplifyImagesInReplyContent(logger, ref inPost);
-            o.Content = new()
-            {
-                Pid = inPost.Pid,
-                ProtoBufBytes = Helper.SerializedProtoBufWrapperOrNullIfEmpty(inPost.Content, Helper.WrapPostContent)
-            };
+            o.Content = Helper.SerializedProtoBufWrapperOrNullIfEmpty(inPost.Content, Helper.WrapPostContent);
 
             // AuthorId rarely respond with 0, Author should always be null with no guarantee
             o.AuthorUid = inPost.AuthorId.NullIfZero() ?? inPost.Author?.Uid ?? 0;
diff --git a/c#/crawler/src/Tieba/Crawl/Parser/Post/SubReplyParser.cs b/c#/crawler/src/Tieba/Crawl/Parser/Post/SubReplyParser.cs
index 19c065f8..a6771c05 100644
--- a/c#/crawler/src/Tieba/Crawl/Parser/Post/SubReplyParser.cs
+++ b/c#/crawler/src/Tieba/Crawl/Parser/Post/SubReplyParser.cs
@@ -13,19 +13,12 @@ protected override IEnumerable<SubReplyPost> ParseInternal
 
     protected override SubReplyPost Convert(SubReply inPost)
     {
-        var o = new SubReplyPost
-        {
-            Content = new()
-            {
-                Spid = inPost.Spid,
-                ProtoBufBytes = Helper.SerializedProtoBufWrapperOrNullIfEmpty(inPost.Content, Helper.WrapPostContent)
-            },
-            ContentsProtoBuf = inPost.Content
-        };
+        var o = new SubReplyPost {ContentsProtoBuf = inPost.Content};
         try
         {
             var author = inPost.Author;
             o.Spid = inPost.Spid;
+            o.Content = Helper.SerializedProtoBufWrapperOrNullIfEmpty(inPost.Content, Helper.WrapPostContent);
             o.AuthorUid = author.Uid;
             o.AuthorExpGrade = (byte)author.LevelId;
             o.PostedAt = inPost.Time;
diff --git a/c#/crawler/src/Tieba/Crawl/Saver/Post/ReplySaver.cs b/c#/crawler/src/Tieba/Crawl/Saver/Post/ReplySaver.cs
index 0d53094e..1df7b72a 100644
--- a/c#/crawler/src/Tieba/Crawl/Saver/Post/ReplySaver.cs
+++ b/c#/crawler/src/Tieba/Crawl/Saver/Post/ReplySaver.cs
@@ -17,6 +17,8 @@ public override SaverChangeSet<ReplyPost> Save(CrawlerDbContext db)
             r => new ReplyRevision {TakenAt = r.UpdatedAt ?? r.CreatedAt, Pid = r.Pid},
             LinqKit.PredicateBuilder.New<ReplyPost>(r => Posts.Keys.Contains(r.Pid)));
 
+        db.ReplyContents.AddRange(changeSet.NewlyAdded
+            .Select(r => new ReplyContent {Pid = r.Pid, ProtoBufBytes = r.Content}));
         PostSaveHandlers += replyContentImageSaver.Save(db, changeSet.NewlyAdded).Invoke;
         PostSaveHandlers += AuthorRevisionSaver.SaveAuthorExpGradeRevisions(db, changeSet.AllAfter).Invoke;
         PostSaveHandlers += replySignatureSaver.Save(db, changeSet.AllAfter).Invoke;
diff --git a/c#/crawler/src/Tieba/Crawl/Saver/Post/SubReplySaver.cs b/c#/crawler/src/Tieba/Crawl/Saver/Post/SubReplySaver.cs
index 7ed1fa80..339252c1 100644
--- a/c#/crawler/src/Tieba/Crawl/Saver/Post/SubReplySaver.cs
+++ b/c#/crawler/src/Tieba/Crawl/Saver/Post/SubReplySaver.cs
@@ -14,6 +14,9 @@ public override SaverChangeSet<SubReplyPost> Save(CrawlerDbContext db)
         var changeSet = Save(db, sr => sr.Spid,
             sr => new SubReplyRevision {TakenAt = sr.UpdatedAt ?? sr.CreatedAt, Spid = sr.Spid},
             LinqKit.PredicateBuilder.New<SubReplyPost>(sr => Posts.Keys.Contains(sr.Spid)));
+
+        db.SubReplyContents.AddRange(changeSet.NewlyAdded.Select(sr =>
+            new SubReplyContent {Spid = sr.Spid, ProtoBufBytes = sr.Content}));
         PostSaveHandlers += AuthorRevisionSaver.SaveAuthorExpGradeRevisions(db, changeSet.AllAfter).Invoke;
 
         return changeSet;