When the hottest girl in school offers Wonyoung a part-time position at her family’s women-only boarding house, Wonyoung is stoked. But when she ditches him and her family yelling how she doesn’t want to work at a boarding house filled with a bunch of “creepy” women, Wonyoung starts to wonder what he’s gotten himself into… Turns out the building is built on some inauspicious land, amplifying sexual desire to an uncontrollable state. It’s Wonyoung’s job to help curb that desire for the reputation of the boarding house, and the sanity of the ladies living there.

Dongsoo’s a loser, no doubt about it. He’s unreliable, unemployed, and unlikely to get laid any time soon. At least, until he runs into Geumsil on a train to Seoul. Short skirt and and boob window aside, she’s way out of Dongsoo’s league. But, that all changes when an accident on the train embues Dongsoo and some other passengers on the train with a thousand years worth of sexual spiritual energy. The thing is, there’s only one way to release the energy. Time to hang out with your yang out.

When the hottest girl in school offers Wonyoung a part-time position at her family’s women-only boarding house, Wonyoung is stoked. But when she ditches him and her family yelling how she doesn’t want to work at a boarding house filled with a bunch of “creepy” women, Wonyoung starts to wonder what he’s gotten himself into… Turns out the building is built on some inauspicious land, amplifying sexual desire to an uncontrollable state. It’s Wonyoung’s job to help curb that desire for the reputation of the boarding house, and the sanity of the ladies living there.