Isn't love all you need to save the world?
On this continent, whenever the Day of the Inverse Moon appears, some people awaken supernatural abilities. These powers come in all kinds of strange forms. Zhang Ren, who transmigrated here, was lucky enough to awaken one too: as long as he falls in love with a girl, he can copy and gain her supernatural ability.
Ah
As long as I build a harem... Ahem, believe in love, I can get stronger.
This is an uplifting story about a protagonist who decides to save the world with love.