BANK-014 Brother who has sex with his sister while parents are out Manabu Hirata

Mana was famous for being cute even in her hometown and often got hit on by various guys, which was troublesome. Since she was still young and had a quiet personality, she couldn't firmly refuse them, so her brother would often step in to handle the situation. Mana found her brother reliable and always thought that if she were to get married, it would be nice to have someone like him. One day, however, she caught her brother masturbating…