[UNCENSORED-LEAK] NACR-951 While my brother is away on a business trip, I am at the mercy of my slutty sister-in-law Fumino Satsuki

I'm staying with my brother and his wife while I'm job hunting. My brother is away on a business trip overseas. I'm secretly excited about his wife, Fumino, who is stylish and beautiful. One day, while I was reading a book of pure literature, Fumino was interested in the "forbidden love" that the book described and started to seduce me, but I couldn't resist...