T28-555 A brother who forcibly commits incest with his insolent sister while she resists, glares at him, and curses him

A shut-in, gloomy older brother. His younger sister is lively and a popular beauty at school. Despite being siblings, they have completely opposite appearances and personalities. The sister hates her brother and often shouts at him, 'Don't come out of your room!' Every day, the brother is scolded by his sister, and one day he suddenly snaps and rapes her. The sister resists and glares at him while shouting, but she cannot overcome her brother's pent-up frustration and lust, and ends up being raped...