The story revolves around a sweet and charming young girl who possesses a strange superpower. Do Bong-sun is a true powerhouse, capable of lifting weights that far exceed her own, and she also takes it upon herself to punish the villains she encounters. When the heroine falls in love with the uptight and meticulous genius Kook-tu, she wants to become gentle and refined for her chosen one. But instead, she finds herself once again taking matters into her own hands.