Water Spirit.Souichiro is booked for speeding in his rush to find Misaki. Ai sees the ghosts of the children, and finds a ring attached to a necklace. As they start to drive back to Tokyo, Ai sees Fujiwara, who takes them to Misaki. Detective Yamazaki takes them all to the house where Ichinose lived with her uncle, a sexual predator, but Ichinose’s spirit is not there. Yamazaki reveals that Ichinose’s father tried to kill them both in the lake when she was a child, but Ichinose survived. Later that night Yamazaki convinces Misaki to try again to contact Ichinose at the house, while wearing the ring attached to the necklace, which belonged to her father. Ichinose possesses her and causes her to attack Yamazaki, and then drive them into the lake. They survive, and Misaki, possessed by Ichinose, reveals that she killed the children to save them from being abused by adults as she was. Misaki pulls Yamazaki from the car, but Ichinose’s ghost sinks with her father’s ring and her spirit is released. With Ichinose gone, the children’s spirits also depart in peace.