影片讲述三个顽皮可爱的男生怀疑他们的好友小甘喜欢他的同性邻居小奈而花样百出进行测试,然而原本只是玩笑的他们,看到好友因为感情而难过时,有了放弃继续玩闹的打算,但小奈女友的出现让他们知道了自己真实的想法。 Gump was sent by his mom to help Sunz, a nephew of his mom's friend who's just broken-hearted. However, with his charm and playful habit, Gump felt himself shaken since first time he met Sunz. On the other hand, Nai who's in relationship with Gump hat to stumble about his love when he met Ball, his old high school friend that he came back to find out something. The situation was so confusing that finally all four need to sort things out.