iirc, sunwukong etc nominate mc as the person to reincarnate, then the mc is sent back in time by chronos. the mc wake up to when he is still a college student. then there are 5 stages of tutorial. the first one is the zombie (?) and their weakness is salt. there are safe zones. and then the second stage is the worms. the third is about collecting stone balls or smth, and mc sells them to others for points. oh there's also 'lackeys' and admin (?). does any1 know? thanks!