Season 4
Special Investigation Nine
13 EPISODES • 2021
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.

Season 3

Episodes

1: Gray Suspect
Apr 7, 2021
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.
2: Murder Designer
Apr 14, 2021
3: Best Day
Apr 21, 2021
4: Prayer
Apr 28, 2021
5: Killing Blueprint
May 5, 2021
6: Cursed Picture
May 12, 2021
7: Murder Puzzle
May 19, 2021
8: Hedgehog in a Locked Room
May 26, 2021
9: Flying Suspect
Jun 2, 2021
10: Episode 10
Jun 9, 2021
11: Episode 11
Jun 16, 2021
12: Episode 12
Jun 23, 2021
13: Episode 13
Jun 30, 2021
Season 5
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