A 34-year-old loser dies and is reincarnated into a fantasy world as a baby genius. He vows to live a better life this time. Warning: The protagonist is deeply flawed (perverted), but the world-building is the gold standard of Isekai. Status: Anime Ongoing. Manga/Light Novel Complete.

The current hype train. A girl who believes in ghosts and a boy who believes in aliens bet each other to prove who is right. They both end up cursed. It is batshit insane.