An Insane Ethics! A Great Plan For Baby-making By A Father-in-law And Brother-in-law! Mochizuki Bud
Tsubumi, a stepchild, lived with her father-in-law and brother-in-law. One day, his older brother suddenly says, "I want a brother," and his stupid father approaches Tsubu, who is not related by blood. The stupid brother is treated like a good thing by his stupid father-in-law and brother-in-law, saying, "If they're not real siblings, it's fine for me too."
