The third book of the multi-genre cycle "White Fish. Tales of Bai and Yu" continues the touching story of friendship and kindness. The main characters, Xiao Bai and Yu, are connected across centuries—their souls are intertwined, and the secrets of the past lead to ancient spirits and legends. Xiao Bai suffers from an incurable illness, but after meeting a mysterious stranger, he tries to remember what binds them. In the past, he lived in the emperor’s palace, studied medicine, and investigated mysterious incidents. The arrival of foreigners with exotic gifts and an attempt by a foreign prince to take the princess away present the heroes with new secrets and dangers.