"Marry me!" In their childhood, Pizza Hyun and Doughn promised to marry each other. However, after hearing from his mother that two men can't marry, Pizza Hyun decides to let go of his feelings for Do Woon. As time passes, Pizza Hyun continues with normal relationships, but he gets dumped by his girlfriend in a strange way. By chance, he discovers that all his failed relationships were due to Do Woon's interference...