A stranger is seen lurking around the kindergarten, and Kippei is asked to investigate. When he finds the stranger, he recognizes his Aunt Miyako-Yuzuyu's mom! Kippei confronts Miyako and learns why she left Yuzuyu in the care of Kippei's family. Kippei wants to reunite Yuzuyu with her mother, but is Miyako ready for such a step?