From Weakling to Nemesis

Synopsis

A weak guy wishes to be stronger, and his wish is granted, but with a twist. Instead of raw power, he gains the ability to create clones, doubling his strength with numbers. But there’s an unusual way for him to grow even stronger… and it involves something far more intimate.

Also known as From Weakling to Nemesis / 분신술로 매일 두 배씩 강해짐 / De debilucho a némesis / I double my strength daily with Clone Technique