Kaifuku Jutsushi no Yarinaoshi
Dark mature (mature in the sexual meaning this time) Betrayed, drugged and abused by all especially his fellow heroes, Healing Hero rewinded the world after defeating the demon lord. Now using the strongest recovery spell in the world to get his revenge and get everything he wants this time, this is the story of the strongest healer full of hate.
Tensei Kizoku no Isekai Boukenroku ~Jichou wo Shiranai Kamigami no Shito~
Died protecting his friends and reincarnated in a fantasy world with a mission given by the gods themselves: improve his new world civilization using his past memories. Typical OP young child over blessed by the gods. It is like cliché as f*ck, with the harem early engagement (10yo), the “oups I tried to be reasonable but broke common sense again”, straightforward attitude and a tad naive, etc... Not horrible either as it is the cute type manga but nothing new + heavy cliché
Isekai de Kojiin wo Hiraita kedo, Naze ka Darehitori Sudatou to Shinai Ken
... teleported to “save the kingdom” but not apparent great skill so was sent to make an orphanage... Ecchi harem, with mainly Loli. Farewell my fluffy cute innocent orphanage story ヾ(❀╥ ◡╥)ﾉ~ Classical harem girl archetype character... this one will be a no for me.
Skeleton Soldier (Skeleton Soldier Couldn't Protect the Dungeon)
Recommended. Not Isekai but die and retry reincarnation type. A psychologically mature and serious webtoon. Slightly dark fantasy. I like that he is OP but still has a lot of things he can't understand or defeat. After failing to protect his mistress and being killed, Mc, a simple skeleton soldier woke up at his 1st summoned place. Back at lv1 but with all his old stats. Vowing to protect his master(s) this time, he aims to be stronger and change his destiny.
Isekai Onsen ni Tensei shita Ore no Kounou ga Tondemosugiru
High schooler died on his way to a rural onsen reincarnated as an onsen in a fantasy world in the middle of a forest. Hehas abilities a bit like a management game. Harem, obviously a lot of ecchi... I read out of complete curiousity and to satisfy my "wtf" feeling but actually enjoy it a bit... I don't really recommend it but it's entertaining? I have no excuse XD
Boundary Labyrinth and the Foreign Magician
Harem as fuck. Classical plot, bit cliché but ok. Bullied by his half siblings, Mc remember his past life. This new world is similar to a VRMMO he used to play back in Japan. Realizing he can use his magic has in the game, he set off for an adventure far from his noble family, together with his trusted maid, a (strong) half vampire.
Jichou shinai Motoyuusha no Tsuyokute Tanoshii New Game
Was send by truck-kun a 1st time as the hero, won, reincarnated as a company slave again and died again. Asked to be send back to the same world but this time he will leave without restrain. Dropped Ecchi/smut harem. The girls have cliché personalities and he doesn’t even really care for them. OP Mc is a bastard but that’s ok. What I have a problem with is: where is the plot? He is just running around gathering an harem to fuck and that’s all?
While Killing Slimes For 300 Years, I Became The Max Level Unknowingly