The tragedy of the younger brother who was sleeping on his wife to his elder brother who had been raised by one man

The husband of Hikari lost his parents in an accident at a young age, and his brother threw him his life and raised him with a man. One day, my brother decides to take care of his older brother, who lost his job, for his old return. The elder brother is deprived of the mind by the beauty of the "Hikari" and the perfect body, and it strengthens the body relation intensely. The bittersweet brother ran away and said, "this is your turn to be happy." He asked the body of "Hikari" again and again. The brother, who had witnessed the affair, could not say anything to his brother, who had felt indignity, and had no choice but to rejoice, saying that "Hikari" became dirty many times.