Top Isekai Manga. Top adulte top isekai. A wild last boss appeared.
Namely getting into another if you want parallel world not a classic fantasy where a priori your world with its own rules namely. 15 best isekai manga of all time according to myanimelist isekai manga have been the biggest craze for a while and these are myanimelists top ten picks. 77745 1001 shows that feel very uncomfortable upon rewatch.
A wild last boss appeared.
For beings from other worlds visiting earth see reverse isekai. Reincarnation manga. Survival of a sword king. Its actually been out for a decent amount of time and its fairly popular.