Ep. 4: Narihisago regresa para investigar al asesino en serie que imita al Excavador de Tumbas, mientras aparece Haruka Kazuta.

Following the suicide of the Pyrotechnician, Narihisago is placed in solitary confinement and members of the investigation team feel on edge over his actions. However, an attempt to find a replacement detective proves unsuccessful, and the team is forced to work with Narihisago again. The target is the Gravedigger serial killer, who buries their victims alive and livestreams their dying process. Sakaido discovers the killer is a depressed and lonely man from the victim's neighborhood, but Kazuo realizes he is a copycat killer and the real serial killer remains at large. The police capture the copycat killer, but arrive too late to save the victim. Back in prison, Momoki questions Narihisago about his killing urges, but reassures that they are still friends. The episode ends with Hondomachi being suddenly kissed at the scene of the copycat Gravedigger's crime scene by Haruka Kazuta, a missing man who was a victim of the Perforator killer. (Source: Wikipedia)
Episodios
- Ep. 1 · Sakaido despierta en el pozo del Perforador después de que Hondomachi sea secuestrado por el asesino en serie.
- Ep. 2 · Sakaido se encuentra con John Walker mientras Hondomachi orquesta su propio rescate del Perforator.
- Ep. 3 · El asesino en serie pirotécnico usa fuegos artificiales para disparar a transeúntes antes de ser arrestado.
- Ep. 4 · Narihisago regresa para investigar al asesino en serie que imita al Excavador de Tumbas, mientras aparece Haruka Kazuta.
- Ep. 5 · La identidad de Kazuta como Gravedigger es descubierta, lo que lleva a una explosión fatal y al revelamiento de Inami como el cerebro.
- Ep. 6 · La muerte de Kazuta y la investigación sobre la identidad de John Walker
- Ep. 7 · Hondomachi investiga a Narihisago y Kiki Asukai mientras Momoki es acusado por John Walker
- Ep. 8 · Togo lidera una misión de rescate para extraer a Hondomachi del pozo de sueños de Kiki Asukai, mientras Momoki enfrenta un interrogatorio policial.