Traveling on an island like Noah's Ark after the destruction of civilization, the reality that there are almost only women is extremely frustrating. The few men try their best to maintain their rarity, so as to enjoy a more wonderful life than being in the harem.
After time-traveling into the body of a fat, unattractive workaholic, and technical nerd genius woman, the time-traveling woman desperately realized that she probably had no chance of becoming a bride in this life. During the first copying and creation of female genes, a man with a broken personality was created...
Deeply feeling the malice from the entire world, the time-traveling girl thought in frustration: Maybe even her own existence would be wiped out because of this forbidden mistake.