"I never thought that I would be doing this with you, sunbae." Shim Woojin and Kwon Kyung were only high school seniors and juniors to each others. At the wedding of Inseob, Woojin's close friend and Kyung's unrequited love, the two reunite after 12 years. Kyung, who regarded Woojin as his love rival, and Woojin, who had feelings for Kyung, end up having a private after-party. As the conversation gets longer, the night between the two becomes deeper...