The criminal of the corpse delivery case is Mikoshiba? Yoko is upset when she finds out that the former "Boy A", mentioned in the news for committing the crime that shocked Japan, is Mikoshiba. Her friend and roommate, Asumi, begins to investigate Mikoshiba saying that she can't forgive him. On the other hand, Mikoshiba is convinced that Akiko is hiding something. He flies to Fukuoka, Akiko's birth place, in search of clue and hears from an old doctor, Mizobata. Mizobata, Akiko's doctor when she was a child, tells him that, following a great tragedy, suffers from memory problems as well as another issue. Yoko goes with Asumi to visir Inami Takeo, the instructor in charge of Mikoshiba at the youth detention center. Asumi asks Inami about the case but Inami chooses not to speak with them. Yoko follows him as he leaves to tell him she just wants to know the true Mikoshiba. After returning from Fukuoka, Mikoshiba visits the Tsuda family again. Miyuki, the eldest daughter, is still sick and staying locked away in her room. Rinko, the second daughter, proclaims she's missed Mikoshiba and the father-in-law proclaims a desire to see Akiko's sentence commuted. The question, however, remains. Why was Akiko's unemployed husband Shingo killed? What is Akiko hiding?