MASM-015 - My friend's younger sister appeared innocent but was a very arrogant young girl! I was insulted with polite language, "You're a pervert," and my adult pride was shattered as I was forcibly ejaculated upon. Satsuki Ena

I went to my friend's house and ended up alone with his polite younger sister, Ena, and we decided to play a game together. I was flustered by the penalty proposal, "The loser has to do whatever the winner says," and I lost. I wondered what cute commands my sister would give, but she smiled and said, "Take off your clothes"... Huh? She, who seemed innocent, was a super S with a J-style mask! She continued to make erotic requests in polite language, and the hellish days of being ejaculated into like a living sex toy began.