A young sister of a cute smile, our sex-controlled pet, Mizutani Aoi

At age 1999, Aoi is often popular with boys because of her cute, cute and cute personality, and even though she just broke up with her boyfriend, she has already got a new boyfriend. The older brothers who had loved Aoi since childhood began to seek Aoi's body out of jealousy and deep affection. Although Aoi thinks it's not good for her to have a physical relationship between her brother and sister, her feelings of guilt amplify her stimulation, and she becomes addicted to pleasure after having sex with her older brothers.