The movie was inspired by seven sins of seven politicians (7 deadly sins) where the story goes back when they were 15, in their last camping time of their lives.
After returning from their seaside trip during the first semester break to practice for the Hot Wave competition, Tinn and Gun's love for each other has blossomed. However, a secret is a secret, and they still can't tell anyone they're dating. As the second semester begins, they promise to keep...
When troubled Barth moves into his school, young seminarian Tanrak is asked to look after him and put him on the right path. Barth's presence, however, accidentally serves to test Tanrak as he struggles to reconcile his innate feelings with his faith and fears for his future.