After being laid off, I had to stay at my brother's place for a while. When I got there, my brother was gone, and my sister-in-law, Reika, greeted me alone. Reika, always cheerful and kind, is a stunning beauty with breasts that are too good for my brother. I've secretly admired her since the first time we met. It turns out my brother is on a business trip, so it's just the two of us, me and my busty sister-in-law, at home. Thinking about it makes my heart race. As if she knows how I feel, Reika suddenly appears in the bathroom or in revealing clothes, and my mind is completely consumed by my sister-in-law's ample bosom, leaving no room for job hunting.