Kuro no Maou
Dark fantasy isekai. Op ML, FL (adult form) and enemy. Ok plot so far. Not revenge isekai so far but might become one? Warning. Non human genocide. Crude art. (LN tagged polygamy, harem, mature but manga still ecchi “only” for now). Summoned as an experiment. MC was forced fighting using his black magic. Ran away and met a cute half-fairy child banned since birth from fairies. They became family in a multi-racial village, but war aren’t far and happiness can be short...
Maou No Kawaii Yamada Wa Yoiko
Sekai Saikyou no Assassin, isekai kizoku ni tensei suru
Best assassin ojiisan was killed after he retired. Goddess send him in another world with his knowledge and memory, but in exchange he has to kill the hero? After reading c1 I was hyped... Mc and goddess has interesting personality.... but the rest seems to be the cliche reborn Isekai with with OP Mc and ecchi... I’ll give it it’s chance for now since og goal is interesting. I just read c2.2: Warning trigger children sexualisation (no real sex of course) --“
Kujibiki Tokushou Musou Harem-ken
Mc won the secret grand prize of a lottery and was send to another world with a special ability. Only read c1 and already thinking of dropping. Can see harem but the announcement kind, coming from miles away. Mc seems like old cliché self centered hero.
Nozomanu Fushi no Boukensha
Mc (male) is a low rank adventurer despite being useful to the guild thanks to his witness. Accidentally stumbled on a powerful dragon in a labyrinth and died. Or so he though but woke up as a skeleton and decided to use that to his advantage toward his dream. Super interesting plot! Getting better the more you read! Quite mature story with nice character psychological development aspect. Not harem! Going toward Op Mc...
Moto Sekai Ichi'i Subchara Ikusei Nikki: Hai Player, Isekai wo Kouryakuchuu!
Game nº1 player avatar was hacked and deleted. Has a Neet with only that in his life, he committed suicide. Woke up in his sub avatar body in a world similar to that game. Let’s aim for nº1 again! Mc has Chuunnibyou tendency I believe. Is OP. I’m not sure if I like or not the knight girl. Overall ok but not much more.
Isekai Tensei no Boukensha