1 - Episode 1

Fifteen years after witnessing the kidnapping of a girl at school, Kento hears someone calling his name through a discarded two-way radio.

2 - Episode 2

Kento determines that the true culprit is a nurse named Keiko Yoshimoto, but she refuses to crack under questioning from Misaki.

3 - Episode 3

The two-way radio reconnects after the reinvestigation starts. Just as Kento had suspected, Ooyama had been part of the initial investigation in 1997.

4 - Episode 4

1997. Ooyama learns from Kento that the next victim will be his friend Midori. In 2018, Kento holds his breath for a favorable outcome.

5 - Episode 5

Kento learns that Ooyama went missing 18 years ago and was later dishonorably discharged. In 1998, Ooyama works on a certain serial larceny case.

6 - Episode 6

7 - Episode 7

8 - Episode 8

9 - Episode 9

10 - Episode 10