Si-Wu doesn’t do relationships — just low-maintenance hookups with no strings attached. So when Hui-Won, a younger classmate with no apparent sex drive, a great body, and a frustratingly handsome face, starts hanging around, Si-Wu figures he’s found the perfect arrangement.

“Hyung, you’re more good-looking in my eyes... You're so handsome…”

But Hui-Won barrels in without hesitation, and the emotional walls Si-Wu built so carefully don’t stand a chance. As Hui-Won keeps crossing lines and closing distance, Si-Wu keeps telling himself the same thing:

"It'll be like taking care of a stray dog... I'll just offer him foster care until someone better comes along."

(Source: Lezhin US)