A father, brother and sister who live in an apartment complex in the suburbs of Tokyo. Her younger sister, 21, acted as a surrogate mother to support her family throughout college. Her older brother is a 32-year-old man in the children's room who never leaves his parents' house. My sister has been treating her brother's libido for a year. Her sister, who had a secret called "general erogenous zone", felt that she felt good even though she knew that intercourse with her brother was not allowed.
