Asuna Hoshi, 25 years old. She works hard on weekdays but lazes on holidays. She's a natural slut, a pervert, her sister-in-law, she masturbates 10 times a week, has super strong libido, because her breasts are big and tired, she always rests on the desk or chair. She loves games and anime, and here she speaks Kansai dialect. When she saw her brother returning home defeated from job hunting, she said, "Your shoulders are sore, so don't be so negative! Here, let me massage them with my breasts!" Brother "My breasts have nothing to do with it!" Sister "It really works!" The story is filled with overly erotic developments, a little humor, and misunderstandings about being careless.
