A really crazy idea, but he had no other choice after seeking help everywhere and still not being able to have children. It had been 5 years since they got married, but Tsubasa couldn't conceive because her husband had physiological issues; she hadn't even been able to reach climax once. That was indeed a disadvantage and misfortune for her as a wife who was always craving intimacy. Her impotent husband had to ask for help from his younger brother, a strong guy who was skilled in bed, to help his wife conceive. Tsubasa felt resentful towards her husband, not because he was committing incest, but because he hadn't brought his brother to meet her sooner.
