"If you like... I'll give you a handjob?" My brother and his wife have come to stay with us, and I've been bothered by the sounds of their sex every day, so I finally reach my limit and have a wet dream. To make matters even worse, my niece Hikari finds me in the act. How pathetic. However, I can't continue living like this, so I have to find an opportunity to get off... Just as I was thinking that, my niece proposes that I give her some sexual relief. Half because I feel bad, and half because I'm just curious about sex. I resist, but my limit has been hit and I go along with the proposal, and a strange relationship begins!