Karin is a school girl who was entrusted to a relative's house during divorce mediation with her father's DV. There lived three beast-like brothers. Every day I endure while clouding my expression to Ryo, who can be anywhere from the quiet eldest son, the ferocious second son, and the metamorphosis third son. And the day came when all the relatives gathered. She still knows nothing about the greatest tragedy that will occur after this ...