Episode 10 - S1.E10

Haruto is arrested. Despite her promise to save him, Ayako can only stand by helplessly while Mitsuo begins his interrogation. Riku is also questioned by police after returning from his trip with Sakuya. Though worried about Ayako, Riku is conflicted about what he should do. With the police no closer to determining the serial killer’s identity, Ayako realizes she must take matters into her own hands.