HBAD-731 - When it was discovered that I was making fun of my older sister's extremely erotic big breasts and voluptuous body, I was officially appointed as the sexual desire reliever Kotone Yamamoto.

My younger brother Takeshi, who is a dancer and is older than me and has plump breasts, always watches his older sister practice dancing at home and has completely fallen in love with plump big breasts.He secretly watches his sister practice and masturbates with her plump body, but gradually he starts to lack stimulation and starts looking for more extreme videos...