Japanese isekai that I like ONLY

Summary: MC suddenly remembered his past life, and the world of his current life. Determined to change is fate as a minor villain, he strives to be a better person

Harem:
Updated monthly

PROTECC THE CUTIE PATOOTIE!!!
It's a shounen-ai but it's far faaaaar into the future. Right now MC is living peacefully as a kid.

Summary: What if there's mirror world similar to ours, connected through a thin veil? What if all those unexplained mysteries online are actually true? Once you know of their existence, are you able to escape?

Harem:
Last updated Mar 2025

Barely there romance, choke full with horror and adventures. If you like horror, this is a MUST READ!
Anime

Summary: After falling asleep, MC isekai'd into his online character, a man-cursed-into-a-skeleton avatar. He tried to live unnoticed (lol) but so far he's been helping a lot with other races from the discrimination they received from human race.

Harem: most probably but 2 so far
Last updated July 2025

There's already Anime available. Story is fine, not too boring, not too complex.

WARNING SPIDERS

Summary: MC reincarnated into a world similar to her favourite strategy game, where she became the leader of the arachnea (spider monster). She tried to live peacefully, but after a tragedy occured, the world will be covered in blood in the name of her "revenge".

Harem:
Completed

No, this is NOT Kumoko-chan. This is way, wayyyyy more gory. This is as much scary as it is beautiful.

Summary: Died from overworking, MC is isekai'd into a fantasy world with suspicious medicinal practices. With powers akin to a god, he overturns the world's view on pharmacist.

Harem:
Last updated July 2025

A straightforward and cliche storyline but entertaining nonetheless. There's Anime available.

Summary: Reincarnated as a daughter of a poor noble family, MC strives to be free together with her sister. With her cheat magical power and her OP teacher by her side, she aims to...make yakiniku sauce?

Harem:
Completed

Manga is finished, I think? But not the novel. The novel is very GL coded, but sadly the manga stopped before anything could happen.

Summary: Mc is very much an otaku of Japanese historical figures. He somehow got a very cheat system of "Appraisal". He's in his way to make his territory safe but who knows, maybe he'll be a king one day?

Harem:
Updated monthly

A lot of political scenes, war meetings, strategy talks, though somehow still light enough for casual readers.

Yes there's anime. Go check it out!

Summary: Accidentally dragged into a summoning, MC gained healing magic. Under the "training" from a HELLish boss, he strives to become a powerful healer and defeat enemies with a....healing punch?

Harem: there's a tag but no romance so far
Last updated Aug 2025

Anime available

Summary: Suddenly isekai'd into a world similar to his favourite video game, MC aims to do things that makes him happy, which is crafting, and live a slow and enjoyable life.....and then he proceed to break everyone's common sense.

Harem:
Updated monthly

Summary: MC was killed by her lover and regressed. This time, she swears to stay faaaarrr away from her past life lover. But what's this? Someone seems different from the past...

Harem:
Last updated Nov 2024