A gentle and cheerful Risa sister who lives in the next house that she has longed for since she was a child. The beautiful voice of estrus mixed with sighs heard from her sister's house, the appearance of straddling a man and shaking her hips violently ... Every time I witnessed an adult sister who never showed me, I was alone every day. One morning, I finally decided to go to my sister's house while suppressing the tremors.
