Yoko, a 5-year-old girl, on a walk with her father finds an abandoned Western-style building with a beautiful garden, into which an elderly woman is moving. Yoko is attracted to the noisy grandmother, although she is afraid. Eventually Yoko falls ill with diphtheria and spends her time in the hospital. One night she is guided by a girl, who looks into the mysterious world of her grandmother's memory. The memories of 5-year-old Yoko and her 70-year-old grandmother overlap. Yoko experiences an adventure in her grandmother's time that was neither her dream nor reality.

Manhattan Aoshima and World Hashimoto are invited to the villa of fortune teller Gold Kotegawa along Gold's maid, Maki. One morning, Gold is found dead. There are three suspects. Money, honor, body, and jealousy.... The story is told through recollections, as each person's thoughts and relationships are intertwined. Who killed Gold?