Traveling though different worlds

A university drop out that just hit 21years old living with his single mum and older sister. He feels emotions that normal humans feels that he fakes and thats what he thought but as his grew older he started to notice that he doesnt care about other people at all, maybe just a little bit of feeling to his close family but to anyone else if even friends, cousins or grandparents that die or bad accident occurs to them he wont care. This is a story of him getting fed up with his life and starts to do whatever he feels that make him feel alive until he dies on his 24birthday, which he gets a chance which he never thought he would get. Well guys&ladies u guess it right the traditional reincarnation shit!!! and no harem bullshit i dont like so each world i will pick a female lead in each world he wants too.