Re:_Patching_Together_Life_in_Another_World_from_Zero
Published on April fools of 2019, Tappei Nagatsuki wrote a chapter, commonly known as Tsugihagu or Gluttony IF, where Murder became a habit for Natsuki Subaru, and started to read the victim's Book of the dead during the sixth arc.
re:zero kara tsugihagu isekai seikatsu