I tried for like 3 chapters but MC is so unlikeable. Earth is invaded by demons and his sister got some deadly disease. He blames himself constantly for it. When he and his sister die he gets regressed by a miniature angel statue that was his birthday present to his sis (long time ago). When he wakes up in the past he gets trashed by a gang and finds his sister afterwards. Then he realizes that his sister is still ill. Which doesn't really make sense because the invasion didn't even happen jet and the disease was caused by it. Then he awakens a system that straight up tells him that if he reaches lvl 99 he can safe earth/ humanity but also tells him to figure it out himself. Pretty much trash up to this point but maybe give it a try when you're bored and don't care if the MC is pathetic.

-_-

If you upload a series, please give information what the story is about. Otherwise it will be passed and overlooked.

Not my thing