Spiral: The Bonds of Reasoning poster

Spiral: The Bonds of Reasoning (2002)

Animation · Crime · Drama

Ayumu Narumi has lived all his life in the shadow of his famous detective brother, Kiyotaka. However, Kiyotaka disappeared two years ago, leaving behind his wife Madoka and Ayumu himself, along with a cryptic message about the "Blade Children." One day, a girl at Ayumu's school suddenly dies. What seemed like a suicide at first glance turns out to be a murder, and Ayumu is the prime suspect. While investigating the person responsible for framing him, he discovers that the mysterious Blade Children are involved—and they somehow know Kiyotaka personally. Ayumu soon finds out just how dangerous the Blade Children are and learns that, in reality, he and Kiyotaka are intertwined more closely than he had ever believed.

IMDb rating
7.0 (309 votes)
Seasons
1
Language
JA
Type
TV series

Ratings refreshed Jul 3, 2026 · 1 season indexed

Cast

Seasons

Season 1 (2002)

7.00 avg 25 episodes 7.3 → 6.4 24 min avg

Ep 1: 7.3 · 13 votesEp 2: 7.0 · 13 votesEp 3: 6.9 · 12 votesEp 4: 7.3 · 13 votesEp 5: 7.4 · 13 votesEp 6: 7.1 · 13 votesEp 7: 7.3 · 13 votesEp 8: 7.0 · 13 votesEp 9: 7.2 · 13 votesEp 10: 8.0 · 14 votesEp 11: 6.5 · 13 votesEp 12: 6.9 · 12 votesEp 13: 7.7 · 13 votesEp 14: 6.0 · 13 votesEp 15: 6.9 · 12 votesEp 16: 7.1 · 12 votesEp 17: 7.0 · 11 votesEp 18: 6.9 · 9 votesEp 19: 7.0 · 9 votesEp 20: 6.8 · 8 votesEp 21: 6.7 · 8 votesEp 22: 6.9 · 9 votesEp 23: 6.6 · 10 votesEp 24: 7.2 · 11 votesEp 25: 6.4 · 9 votes
Season 1 episodes — IMDb ratings
#TitleRatingVotes
1Unmei no rasen7.313
2Shi no seijukan7.013
3Norowareta kodomo tachi6.912
4Shinjiru mono no kôfuku7.313
5Kiri no shikei dai7.413
6Hôimô no shikaku7.113
7Shinjinu mono no sentaku7.313
8Haisha bakari no hi7.013
9Kimi ni dekiru arayuru koto7.213
10Tatta hitotsu no saeta yarikata8.014
11Guddo naito suîto hâtsu6.513
12Kawaita hitomi6.912
13Overture: Jokyoku7.713
14Amaki kaori kagerô ni nite6.013
15Raiku a suwan6.912
16Manekazaru hômonsha7.112
17Kurayami no kyasunâ7.011
18Nageki no tenshi6.99
19Kokoro no kagami7.09
20Sasayaku kage6.88
21Kokoro no kudakeru oto6.78
22Kamen no kokuhaku6.99
23Tomanai ame6.610
24Takai shiro no otoko7.211
25Ayame no ite toku oto6.49