Yoshikawa Rennai (Zhongtiao undecorated) and Yutai (Xiaoguan Yutai) are childhood playmates, and they are very close to each other. Peach family owed a huge debt, in order to avoid creditors, peach family decided to escape overnight, Rennai is very reluctant to leave, the two made an agreement that one day, peach will follow Rennai's song to find her again. The departure of the peach made Rennai fall into sadness, and at this juncture, a teenager named pomelo (Zhi Zunchun) appeared beside Rennai, patiently comforting and encouraging Rennai, so that Rennai gradually regained the strength to continue his life. However, one day, pomelo and peach also suddenly lost news, but this time, Rennai did not despair, she sang a ballad, waiting for the day to be reunited with her old friend.