A delinquent from his brother's part-time job place barged into their home, and his sister with enormous breasts (あゆ) was raped. The unreliable brother couldn't say a word even when his sister was assaulted. Worse yet, he got aroused by his raped sister. あゆ, who had been filmed committing incest, was raped and subjected to internal ejaculation in front of her brother.
