Marie is a fluffy big-breasted woman who lives next door. She always looks after me, invites me to her house, and treats me to meals... In the first part, Marie with her J-cup bust invites me on a hot spring trip, and I finally lose my virginity! In the hotel room and the private family bath, we get entangled, blame each other, and irresponsibly inseminate and ejaculate inside each other's vaginas over and over again... And in the second part, during our sex life after the hot spring trip, my endless interest in the female body and my youthful sexual desire explode! In the kitchen, bedroom, and bath, the two intertwine their lust!