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KILL BLUE
Synopsis
The story
Juuzou Oogami is a legendary hitman who has never failed an assignment, no matter how impossible. One day, after wiping out a powerful organization, he is stung by a mysterious wasp and collapses. When he wakes up, the fearsome 39-year-old assassin has been transformed into a 13-year-old boy! Before he can even process what happened, his boss delivers a new order: “In that body, infiltrate a middle school.” What awaits him is an unexpected school life filled with colorful classmates, youthful chaos, and looming danger. Can Juuzou ever return to his original form? Or will the assassins closing in on him end his second life before it even begins!?
ActionComedy
Episode guide
12 episodes
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01Episode 1Unwatched · AiredAired Apr 11, 202602Episode 2Unwatched · AiredAired Apr 18, 202603Episode 3Unwatched · AiredAired Apr 25, 202604Episode 4Unwatched · AiredAired May 2, 202605Episode 5Unwatched · AiredAired May 9, 202606Episode 6Unwatched · AiredAired May 16, 202607Episode 7Unwatched · AiredAired May 23, 202608Episode 8Unwatched · AiredAired May 30, 202609Episode 9Unwatched · AiredAired Jun 6, 202610Episode 10Unwatched · AiredAired Jun 13, 202611Episode 11Unwatched · AiredAired Jun 20, 202612Episode 12Unwatched · AiredAired Jun 27, 2026Characters & voices
500 credited
Eri Wanibuchi
Supporting
Ryou Shiraishi
Supporting
Juuzou Ougami
Main
Noren Mitsuoka
Supporting
Kotatsu Nekota
Supporting
Shin Kohazame
Supporting
Eiji Rindou
Supporting
Chisato Shiraishi
Supporting
Kazuma Rindou
Supporting
Mai Otohime
Supporting
Tenma Tendou
Supporting
Kouchou
Background
Tannin
Background
Reika Takada
Supporting
Rio Yokoyama
Background
Souta Kurosawa
Background
Tomomi Baba
Supporting
Boss
Supporting
Production staff
500 credited
Tadatoshi FujimakiOriginal Creator
Hiro KaburagiSupervisorHiro KaburagiSeries Composition
Manamu AmasakiAnimation Director (ED)
Yasunori IdeDirector
Hirotaka MarufujiAnimation Director (ep 1)
Daisuke ImaiEditing
Shouji HataSound Director
Yoshinori HorikawaColor Design
Ryuu NakayamaDirector (OP)
Tatsuo UenoFinishing (OP)
Miho DaidoujiCharacter DesignMiho DaidoujiChief Animation Director (ED)Fumiko TanakaFinishing Check (OP)Fumiko TanakaColor Design (OP)Fumiko TanakaColor Coordination (OP)Chiaki NumataFinishing (OP)
Shinya MatsuiDirector of Photography
Gakuto GonbeiArt DirectorYoshiyuki OotaFinishing (OP)Themes & motifs
AniList community tags
GunsTheme-Action91%
SchoolSetting-Scene90%
Age RegressionCast-Traits90%
AssassinsTheme-Other-Organisations88%
ShounenDemographic83%
School ClubSetting-Scene79%
UrbanSetting-Scene79%
RehabilitationTheme-Drama72%
Surreal ComedyTheme-Comedy72%
KuudereCast-Traits70%
CrimeTheme-Other70%
Primarily Child CastCast-Main Cast64%
Ensemble CastCast-Main Cast60%
Male ProtagonistCast-Main Cast60%
Criminal OrganizationTheme-Other-Organisations60%
BullyingTheme-Drama40%
Community pulse
48.7K members
Score spread
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Watch status
Current13,869
Planning13,846
Completed18,783
Dropped1,399
Paused850
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What viewers say
2 community reviews