Mansumyeon Mugangri

Dong-Ha, a medical school resident with a clumsy but genius brain, accidentally succeeds in a 'human reproduction' experiment that he researched on his own. Eight years later, South Korea is currently in a situation where the nation's existence is in danger due to the problems of a super-aging population and low birth rate. Dong-Ha establishes his own rules of killing and decides to resume the human reproduction experiment. In order to obtain materials smoothly(?), Dong-Ha opens a small private hospital in the rural village of 'Mansumyeon Mugangri' full of elderly people with his eight-year-old son, Gam-Nyeong. Ironically, he begins killing to save the country and humanity.

(Source: Naver, translated)