A woman with thinning hair who is very sexually attractive

The owner of the second-hand bookstore, Shouya, has completely cut off all forms of human interaction with others. He leads a life like a recluse. His sexual desires are satisfied by Maria, a prostitute he knows well. Eiko, a middle school teacher, has feelings for Shouya. She indulges in intense masturbation, filled with thoughts of Shouya. One day, Rinna, the daughter of Shouya’s brother-in-law, came to see him…