HBAD-713 - A sister, Tsuii Honoka, who tempts by revealing a large chest without a bra through clothing gaps, and is a saliva-dripping, licking enthusiast.

Takeshi dreamed of a glamorous university life in the city, but in reality, he couldn't make any friends or find a girlfriend and lived in a 6-tatami mat apartment. While on his way to work, Takeshi overheard men in front of an old house in the neighborhood talking about a sexually attractive woman with large breasts living there, so he peeked inside and found a truly erotic, large-breasted older sister living there...