Gyakusatsu Happy End

r/Seinen · Please. Read. This.

Not the same but it gave me some of it's vibes. Called Massacre Happy End

r/Seinen · Any recs that are similar to these

Massacre happy end

r/Seinen · I found serialkiller documenteries or series striking to watch which manga do you recommend?

My Dearest Self with Malice Aforethought Massacre Happy End Brutal

r/mangarecommendations · Any recommendations like Juujika no Rokunin?

my hear me out rec is Dungeon Seeker. My more likely to enjoy ones are: Prison Lab, Brutal, Gyakusatsu Happy End

r/mangarecommendations · Intense Manga recommendations

Massacre Happy End

r/mangarecommendations · Ayuda por favor

Si t’aime l’horreur j’ai lue sa y a pas longtemps et j’ai kiffer le manga c’est:Gyakusatsu Happy End je l’ai trouvé sur scan manga