My Girlfriend’s Sister Wants Me Too

Yuri lives with her younger sister Satsuki, and they get along well enough, except for one thing that drives Yuri wild: every night, she has to listen to Satsuki and her boyfriend Shou having sex on the opposite side of her bedroom wall. The thin walls of their apartment make every sound painfully clear, and Yuri finds herself increasingly restless and curious.

One day, when Yuri and Shou are left alone in the apartment, she gets a little curious. With Satsuki away, the opportunity arises for Yuri to explore the feelings she has been trying to suppress. As she gives in to her desires, the boundaries between sisterly loyalty and forbidden attraction begin to blur, leading to a dangerous game of temptation.