Cheese Film

Tomohiro takes his fiance Machiko to his hometown of Aridagawa in Wakayama Prefecture to see his family.Tomohiro’s family includes three siblings. His younger brother Takeshi refuses to go to school. His older sister Yumi isn't interested in their family. Younger sister Sayaka has an inferiority complex and has a fear of dating. There's also Satomi who everybody calls Mama and she does all of the housework. Kayoko is called Kaka and she works as a snack bar manager. Narumi is called Haha and she is a high school teacher. Finally, there's their father Shoichiro better known as Chichi. It's an unusual family, but able to exist in harmony. Due to Machiko's appearance, the family becomes shaken.

Kazuho Anamori, ​​who had difficulty fitting in with her class, meets Miko Karakida, who suffers from heart disease, and becomes close friends with her, however, six months later, Miko dies while hospitalized. Kazuho receives a letter saying that there is something to discuss about Miko. When she goes to the address she has been called to, she finds a mysterious transfer student, Rio Ukima, waiting for her.