Xiaoyu, a boy from a small town at the end of the last century and the beginning of this century, lived in a high school that was managed as pervertedly as a concentration camp. Madman was Xiaoyu's best friend. Madman liked Xiaoyu, but he died in an accident before he could really say it. There was no sunshine in Xiaoyu's life again. All that was left was studying hard, and then went to a university in Beijing. Munch, a sunny boy from Ulaanbaatar, and Aluo, an authentic Sichuan girl, walked into Xiaoyu's ivory tower time. Xiaoyu reunited with the warmth and sunshine that had been away for many years... However, this was only the beginning.