An ordinary and unnoticeable high-school girl, Truly, has a crush on the most popular guy in school. Taiyu, a ruffian and a bully, is in love with the campus belle. By a quirk of fate, Taiyu invited Truly to enter a pack for the losers in love, an "Association of the Dumped". Their mission is to tear the golden couple apart and helped each other to get the ones they love.