Hyorin owns a plant warehouse, in which she experiments with gentics of certain plants, and Mad Clown is a man who buys too many plants every single week; and who happens to peak the interest of said owner, thus leading to a mystery of why he buys the plants in the first place; what she didn't expect, was to slowly fall in love with him.

Hyorin is a super nosey and protective best friend. When Bora, said best friend, begins to smile around a boy whom she can't stand, she finds herself investigating why. The mystery of 'why' leads her to some awkward and totally avoidable troubles; all thanks to Taeyang a stupid boy she thinks her best friend is in love with. And a boy who is way too prideful (at least, that's what she thinks).