"I love you." "You and I both know that's a bad idea." There's nothing but a void in Lee Know's heart. For starters, he doesn't even use his real name. He's also a rude a prick who only managed to become their dance instructor because he's in touch with the studio owner. He's never given his number to anyone in the studio apart from Hyunjin and Felix, his best friends, and according to him, the only ones anywhere near his level. Ren Kang knows this, yet she's still hopelessly and impossibly attracted to him. So desperately and stupidly in love, but there's still no way she could turn things around for them...