悪魔のリドル

Riddle Story of Devil

The story is set at Myoujou Academy, a private girls' boarding school. The 10th year's Kurogumi class has 12 assassins with their sights on one target, Haru Ichinose. Tokaku Azuma is a recent transfer student who is also targeting Ichinose, but she gradually develops feelings for Ichinose. (Source: Anime News Network)

Names

Original	悪魔のリドル (japanese)
Romaji	Akuma no Riddle
English	Riddle Story of Devil
Chinese	恶魔之谜 (simplified · via bangumi)

Facts

Format	TV series · 12 ep · 24 min · 5h total
Aired	2014-04-04 → 2014-06-20 (Spring 2014)
Status	FINISHED
Studio	diomedéa
Source	Manga
Origin	Japan (Anime)
Demographic	Seinen
Genres	Action Drama
Themes	Assassins Female Protagonist Survival Primarily Female Cast Death Game Seinen Boarding School Battle Royale School Yuri Kuudere Primarily Teen Cast
Streaming	Hulu · YouTube

Reception

Community score	6.63 / 10
Bayesian score	6.68 / 10
Composite	44.8
On lists	61,450
Favourited	564 (0.9%)
Completion	84.0%
Drop rate	7.3%
In backlog	28.1%
Score spread σ	1.95

Score distribution

1340247631,08441,86853,40065,07875,72684,65193,581101,430

Where it places

Cohort	Value	Tier	Rank
Studio	diomedéa	D	34 of 52
Broadcast season	Spring 2014	D	55 of 89
Year	2014	D	257 of 389
Demographic	Seinen	D	608 of 775
Era	Early 2010s	D	1,070 of 1,627
Season (all years)	Spring	D	1,366 of 1,868
Genre	Drama	E	1,577 of 1,917
Length	Single-cour	D	1,821 of 2,668
Genre	Action	D	2,082 of 2,765
Source material	Manga	D	2,377 of 3,025
Format	TV series	D	2,436 of 3,322
Origin	Japan	D	5,132 of 7,157

Key staff

Director	Keizou Kusakawa, Takayuki Sano, Masatoshi Mutou
Series composition	Kiyoko Yoshimura
Character design	Sunao Minakata, Naomi Ide
Original creator	Yun Kouga, Sunao Minakata

Franchise — 悪魔のリドル

悪魔のリドル 13話

Riddle Story of Devil Special

2014Special41.1

Relation	Year	Title
sequel	2014	Riddle Story of Devil Special

AniList id 19429 · MAL id 19429 · Bangumi 78474 · record updated 2026-08-26