Han, from an overseas island, is a young man with a special temperament, and has another personality - Bing. The two know each other, and they travel alone on the island. After several years overseas, they mature little by little, and they overcome obstacles one by one with Bing. They meet their favorite Danyue and their good friend Shaohuo. After a separation and reunion, Han finally falls in love with Danyue, but Bing disappears without a trace...