Ako is a little girl whose parents are always quarreling. One night, things seem to be at a boiling point, and Ako ponders on it in her room. Then, her beloved toy, Boku-chan, starts to walk and talk! This is the doing of the light of the blue moon - a moon that comes around only once a year....

Also contains the following oneshots:

• On a Snowy Day (雪の日に, Yuki no Hi ni)
• Ice Flower (氷の花, Mizu no Hana)
• Tale of the White Rose (白いばらの物語, Shiroibara no Monogatari)
• Kagero (かげろう)
• Yuki Onna (雪おんあ)
• Mary of the Glass (ガラスのマリー, Garasu no Mari）