The life of an American woman living in Kyoto, Japan, is upended when her husband and son disappear in a mysterious plane crash. As consolation, she's given Sunny, one of a new class of domestic robots made by her husband's electronics company.
School girl "Amano" falls in love with a school boy "Hayasaka", but he loves someone else. Amano's best friend, "Yoshiyuki", is opposed to her love. Hayasaka is a menstruophile, and he took all the used napkins in the school and ran away.
