MXGS-1209 Rin Kagura's sister-in-law, who suddenly got a new step-sister due to her parents' remarriage, is a big-breasted girl who loves sex and taunts her with her erotic body.

When our mother remarried, my brothers and I suddenly had a cute little sister with big breasts. - Every time we saw her breasts or panties while she was wearing unprotected clothes, we would make her crotch bigger, but eventually her true nature as a person with a smell fetish and a love for erotic things came out... with a sweet voice. - There was a girlfriend who was trying to seduce me by smelling his cock.