Aina Asada

The film tells the story of 17-year-old high school girl Satoyama Rei (played by Asada), who is not good at socializing and often secretly reads BL comics, and 75-year-old woman Ichii no Yuki (played by Miyamoto), who lives alone after her husband's death and also loves BL themes. The two people with similar interests form a friendship that transcends age.

Aina Asada plays the female protagonist Chihiro, who is in the third year of junior high school. The story tells of how her parents, in an attempt to save Chihiro from birth due to illness and weakness, believe in a "suspicious religion", and this belief gradually leads to the collapse of the family.