Series Brief
Overview
Once a legendary detective, Nagumo Keiichiro now stumbles through middle age baffled by smartphones and modern life. His quiet decline gets disrupted when Mashiro, a bold high school girl, bursts into his office demanding to become his apprentice. Though he’s rusty and set in his ways, her relentless enthusiasm drags him back into detective work. Now the gap-bridging detective duo is on the case!
Featured Players
Cast 27
Tomokazu Sugita
as Cheerful Old Man / Nipple-Tasting Man / Cross Chest Hair Man / Man Who Likes Ropes (voice)
Junichi Suwabe
as Keiichiro Nagumo (voice)
Kana Hanazawa
as Mashiro (voice)
Kengo Kawanishi
as Taro Nezu (voice)
Show all 27 cast Hide full cast
Production Board
Crew
Executive Producer
Graphic Designer
Producer
Prop Designer
Music Producer
Sound Director
Original Music Composer
Director
Original Story
Theme Song Performance
Series Composition
Animation Director
Color Designer
Storyboard Artist
Sound Effects
Art Designer
Online Editor
Series Director
Signal Match
Cast Similarity
BASTARD‼ -Heavy Metal, Dark Fantasy-
7 shared cast members
Shared
Volcano Ota, Tomokazu Sugita, Taisuke Nakano
+4 more
Demon Slayer: Kimetsu no Yaiba
5 shared cast members
Shared
Kengo Kawanishi, Mitsuhiro Ichiki, Tomokazu Sugita
+2 more
SPY x FAMILY
5 shared cast members
Shared
Yasuyuki Kase, Takayuki Nakatsukasa, Taisuke Nakano
+2 more
FAIRY TAIL 100 YEARS QUEST
4 shared cast members
Shared
Takayuki Nakatsukasa, Shoumaru Zouza, Junichi Suwabe
+1 more
DEAD DEAD DEMONS DEDEDEDE DESTRUCTION
4 shared cast members
Shared
Kengo Kawanishi, Tomokazu Sugita, Saeko Oki
+1 more
Kaiju No. 8
4 shared cast members
Shared
Kengo Kawanishi, Tomokazu Sugita, Taisuke Nakano
+1 more
Tomodachi Game
4 shared cast members
Shared
Ayane Matsuda, Saeko Oki, Chado Horii
+1 more
Shenmue the Animation
4 shared cast members
Shared
Taisuke Nakano, Shoumaru Zouza, Kozue Saito
+1 more
Frieren: Beyond Journey's End
4 shared cast members
Shared
Yasuyuki Kase, Takayuki Nakatsukasa, Junichi Suwabe
+1 more
Cyberpunk: Edgerunners
4 shared cast members
Shared
Yasuyuki Kase, Takayuki Nakatsukasa, Shoumaru Zouza
+1 more
Signal Match
Crew Similarity
Gods' Games We Play
7 shared crew members
Shared
Tetsuro Satomi, Makoto Etō, Tatsuya Shirashi
+4 more
Roles: Editor, Executive Producer, Producer
+3 more
See You Tomorrow at the Food Court
5 shared crew members
Shared
Ayaka Nishimae, Daijo Kudo, Sho Tanaka
+2 more
Roles: Executive Producer, Other, Producer
Villainess Level 99: I May Be the Hidden Boss But I'm Not the Demon Lord
5 shared crew members
Shared
Chieko Mizutori, Mao Higashi, Tomoyuki Ohwada
+2 more
Roles: Executive Producer, Music Director, Producer
OVERTAKE!
5 shared crew members
Shared
Ayaka Nishimae, Mao Higashi, Tomoyuki Ohwada
+2 more
Roles: Executive Producer, Producer
Days with My Stepsister
5 shared crew members
Shared
Takeshi Kikuchi, Daijo Kudo, Masayuki Aoyagi
+2 more
Roles: Executive Producer, Other
Grandpa and Grandma Turn Young Again
5 shared crew members
Shared
Takeshi Kikuchi, Daijo Kudo, Masayuki Aoyagi
+2 more
Roles: Executive Producer, Other
Slow Loop
4 shared crew members
Shared
Ayaka Nishimae, Takeshi Kikuchi, Daijo Kudo
+1 more
Roles: Executive Producer, Other, Producer
The Shiunji Family Children
4 shared crew members
Shared
Mao Higashi, Tomoyuki Ohwada, Sho Tanaka
+1 more
Roles: Executive Producer, Producer
A Ninja and an Assassin Under One Roof
4 shared crew members
Shared
Mao Higashi, Tomoyuki Ohwada, Sho Tanaka
+1 more
Roles: Executive Producer, Producer
Love Flops
4 shared crew members
Shared
Ayaka Nishimae, Tomoyuki Ohwada, Daijo Kudo
+1 more
Roles: Executive Producer, Producer
Topic Overlay
Topic Keyword Similarity
Alma-chan Wants to Be a Family!
4 shared keywords
Topics
comedy, based on manga, anime
+1 more
The Foolish Angel Dances with the Devil
3 shared keywords
Topics
based on manga, anime, seinen
Dance Dance Danseur
3 shared keywords
Topics
based on manga, anime, seinen
Dorohedoro
3 shared keywords
Topics
based on manga, anime, seinen
Kubo Won't Let Me Be Invisible
3 shared keywords
Topics
based on manga, anime, seinen
My Master Has No Tail
3 shared keywords
Topics
based on manga, anime, seinen
Deaimon: Recipe for Happiness
3 shared keywords
Topics
based on manga, anime, seinen
My New Boss Is Goofy
3 shared keywords
Topics
based on manga, anime, seinen
BASTARD‼ -Heavy Metal, Dark Fantasy-
3 shared keywords
Topics
based on manga, anime, seinen
Berserk: The Golden Age Arc – Memorial Edition
3 shared keywords
Topics
based on manga, anime, seinen
Keyword Cloud
Keywords
based on manga
detective agency
seinen
anime
comedy
young detective
Next Signal
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Technical Sheet
Details
- First Aired
- July 01, 2025
- Status
- Ended
- Episode Runtime
- 24 minutes
- Origin
- JP
- TMDB Votes
- 16