"Hey, wanna let me take care of you?" I've been driven crazy by the sounds of my brother and his wife's daily sex, and I finally reached my limit, having a wet dream. To make matters worse, my niece, Hikari-chan, caught me in the act. It's so embarrassing! But I can't keep going like this, so I have to take advantage of any opportunity. Just when I thought that, my niece offered to help me out with my sexual needs. Half out of guilt and half out of curiosity, she suggested it. Although I resisted at first, my inhibitions were completely gone, and I ended up accepting her offer, leading to a strange and unexpected relationship.