[DASS-900] After a month of showering her mother with the aura of love every day, she repeated child-making sex with her irrational mother over and over again. Hibiki Otsuki

In the Otsuki family, his father, Yoshio, will be assigned to a long-term assignment abroad... ◎ Mother Hibiki and two sons (Haruki Yuma) decide to spend time at home. As his father's absence continues, the eldest son, Haruki, vows to "protect my mother" and directs his strong feelings towards his mother, saying, "For a month, I feel that I like you... His younger brother, Yuma, has mixed feelings when he sees the situation, and eventually realizes his feelings for his mother. The brothers clash their feelings with each other, compete for their mothers, reconcile with each other, understand each other, and seek each other.