Dungeon Seeker
At first I thought this manga was dope because I like dark MC's but the ending was meh and there were a lot of unanswered questions and when I tried to look them up since this does have a light novel. The novel is completely different. So different in fact that they are practically separate stories. Wouldn't recommend this to anyone.
Kaifuku Jutsushi no Yarinaoshi
TRIGGER WARNING! It's not much of a revenge plot as it is more of a make all your enemies into sex toys. The men he kills and the women he sleeps with. The entire story is just rape. I mean yeah he suffered a lot and I get where he's coming from but it stops being revenge and gets more like how many human fleshlights can he collect. I do like the MC's viciousness but I don't like all the rape in this story.
Flower
Tw- everyone is Hella toxic with lots of dubious consent.
Koi Kogare Utae