About this season
A haunting look at the horrors of Unit 731’s biological warfare, reflecting on history’s wounds and urging a hope for lasting peace.
Episodes (21)
1. Episode 1
Aired 13 December 2025 • 67 min
A routine delivery in 1940 Harbin turns violent when Tong Changfu is ambushed, marking the beginning of a brutal chain of events under occupation.
2. Episode 2
Aired 13 December 2025 • 75 min
Arakawa Ryohei answers a mysterious recruitment call, setting him on a path that draws him deeper into Japan’s colonial and military machinery.
3. Episode 3
Aired 14 December 2025 • 80 min
A propaganda film screening elevates Kojima Yukio’s status, unknowingly pulling him closer to the dark truths hidden behind official praise.
4. Episode 4
Aired 15 December 2025 • 50 min
Missing lab rats and dying horses expose the first cracks in a secret biological experiment spiraling out of control.
5. Episode 5
Aired 16 December 2025 • 46 min
Yulan is seized during an inspection, triggering a daring act of resistance that disrupts the Japanese forces’ plans.
6. Episode 6
Aired 17 December 2025 • 49 min
As Japan’s defeat nears, a frantic effort begins to destroy all traces of forbidden biological warfare.
7. Episode 7
Aired 18 December 2025 • 44 min
Hidden truths collide as rescue plans fail, and Chiyoko’s tragic fate reveals the full horror behind the conspiracy.
8. Episode 8
Aired 19 December 2025 • 46 min
9. Episode 9
Aired 20 December 2025 • 45 min
10. Episode 10
Aired 21 December 2025 • 55 min
11. Episode 11
Aired 22 December 2025 • 49 min
12. Episode 12
Aired 23 December 2025 • 51 min
13. Episode 13
Aired 24 December 2025 • 46 min
14. Episode 14
Aired 25 December 2025 • 67 min
15. Episode 15
Aired 26 December 2025 • 60 min
16. Episode 16
Aired 27 December 2025 • 49 min
17. Episode 17
Aired 28 December 2025 • 52 min
18. Episode 18
Aired 29 December 2025 • 60 min
19. Episode 19
Aired 30 December 2025 • 49 min
20. Episode 20
Aired 31 December 2025 • 67 min
