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Special Investigation Nine Season 4 poster

Special Investigation Nine Season 4 Episode release dates & where to watch

Premiered

Wednesday, April 7, 2021

Ended: Wednesday, June 30, 2021

When does Special Investigation Nine Season 4 come out?

Special Investigation Nine Season 4 premiered Wednesday, April 7, 2021 on tv asahi and ended Wednesday, June 30, 2021. The season has 13 episodes.

New enemies appear to block the Tokusou 9. As in the past, the Tokusou 9 hold on to their belief that "the case will be solved at all costs" and put their all into solving cases.

Last updated

Special Investigation Nine Season 4 release schedule

Special Investigation Nine Season 4 episode release dates
Episode Release date

1. Gray Suspect

A young woman's stabbed body is found about 10 days after her death in a vacant store in a multi tenant building. The Tokusou team begin investigating, discovering her identity and the fact she promised to meet a man on the day of her death. Meanwhile, the suspect of a murder-robbery case is claiming he saw someone else do the crime.

Wednesday · 5 years ago

2. Murder Designer

Wednesday · 5 years ago

3. Best Day

Wednesday · 5 years ago

4. Prayer

Wednesday · 5 years ago

5. Killing Blueprint

Wednesday · 5 years ago

6. Cursed Picture

Wednesday · 5 years ago

7. Murder Puzzle

Wednesday · 5 years ago

8. Hedgehog in a Locked Room

Wednesday · 5 years ago

9. Flying Suspect

Wednesday · 5 years ago

10. Episode 10

Wednesday · 5 years ago

11. Episode 11

Wednesday · 5 years ago

12. Episode 12

Wednesday · 5 years ago

13. Episode 13 Finale

Wednesday · 5 years ago

Special Investigation Nine Season 4 guest stars

  • Nao Osada

    Nao Osada

    Kanzaki Satsuki

  • Meguri Hiroo

    Meguri Hiroo

    Otani Seizo

  • Yoko Mitsuya

    Yoko Mitsuya

    Koga Yuko

  • Yuta Hayashi

    Yuta Hayashi

    Nishi Yuma

Special Investigation Nine Season 4 FAQ

When does Special Investigation Nine Season 4 come out?

Special Investigation Nine Season 4 premiered Wednesday, April 7, 2021 on tv asahi.

How many episodes are in Special Investigation Nine Season 4?

Special Investigation Nine Season 4 has 13 episodes.

Are new episodes of Special Investigation Nine Season 4 released weekly?

New episodes are released weekly.

When is the Special Investigation Nine Season 4 finale?

The Special Investigation Nine Season 4 finale (Episode 13) aired Wednesday, June 30, 2021.

How do I get notified when new Special Investigation Nine Season 4 episodes are released?

Download the Streambay app and follow Special Investigation Nine. You'll get a push notification the moment each new episode is out.

Never miss Special Investigation Nine Season 4.

Download Streambay and follow Special Investigation Nine. We’ll notify you the moment Season 4 is released, and as each new episode comes out. It’s free, with no sign-up and no personal information required.

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