HUNTA-554 I… want to try something else too! A very serious sister-in-law transforms into a wild, uninhibited woman after her first experience with someone other than her husband! Unlike my lazy self, my older brother is capable and not very interested in anything naughty. And my sister-in-law has only ever been intimate with my brother. Then that married couple ends up staying at our family home for a while!? And then, the serious…

Unlike me, who is rather lazy, my capable older brother and his wife, who has known no man other than him, end up living at our family home for a while. Perhaps because she is so serious, my sister-in-law has very little knowledge about romance and keeps asking me, a boy in the middle of adolescence, curious questions she can’t ask my brother. When I reluctantly answer, her curiosity only grows stronger. Before long, she can no longer hold back her desire to experience something beyond her husband and begs for intimacy. Losing herself in a wild, uninhibited moment of self-liberation, she becomes completely overwhelmed with passion and keeps coming back for more again and again.