Seowon, who failed a series of job interviews, gets drunk and ends up spending the night with a man..
What..?! That guy is Jaeha, the close younger brother from the neighboring house who moved away 10 years ago?!
He hoped it would be kept a secret... but Jaeha, the sweet and cuddly boy who used to follow Seowon, uses that as an excuse to demand tutoring, and it proceeds in secret?!