I should protect Anna at all costs. I should stay with her, at all costs, even after death.

After Sumin caught her boyfriend, Minseok, cheating on her, she was heartbroken. She ended up drunk at a bar. She met a kind stranger who turned out to be her friend's boyfriend. What starts as a messy night and a fake-dating revenge plan quickly turns into something deeper, leading the three of them into an unexpected poly relationship.

They fight the hobgoblin and shaman.