My Dearest Self With Malice Aforethought

🇯🇵親愛なる僕へ殺意をこめて · Shinai naru Boku e Satsui wo Komete

MangaSeinenFinished🇯🇵 First published in 2018DramaHorrorMysteryPsychological

Hajime Inoryu story · Shouta Itou art

Eiji the college-age virgin dreams of someday having a girlfriend...until he wakes up one day with his "girlfriend" in his bed with him! Not only that, his buddy tells him he got in a fight...and that three days have passed that Eiji doesn't remember? What dark secrets are being hidden...by Eiji himself? Note: Includes one extra chapter.

Synopsis via AniList