damn a lot of the past comments are retarded just because the MC regressed or reincarnated doesn't automatically mean they should be OP. a lot of the time training arcs are fun to see. there are quite a few manhwa/huas out there that are regression reincarnation with MCs that don't start of OP but do eventually become OP if they last that long but if not, a lot of manhua/hwas have light novels . ITS NOT A NECESSITY !!!!