Cheol-gyu, who is having a successful life, is visited by his old hometown friend, Young-hun. Young-hoon, who is about to get married, asks Cheol-gyu to be Hamjin-abi. Cheol-gyu hesitates at the request of a friend who has not contacted lately. But the bride was Soon-i. Cheol-gyu feels that he cannot refuse the request. He goes to the bride's house with his another friend, Nak-gyun.