There are various dramas under each of the many roofs in the world. This work contains four stories focusing on the dangerous relationship between mother-in-law and son. A mother who has a relationship with her son-in-law, a boy who witnesses the completion of his mother-in-law and grandfather, a boy who sees his mother-in-law masturbating, and a boy who pleads for his mother-in-law's body for some reason. The story of the relatives that should not be done is more green. It's a dish that tickles your heart.