Summer Anime "Mattaku Saikin no Tantei Tokitara" Nagumo Arrested on Suspicion of Underwear Theft?! Episode 2 Preview
The synopsis and preview cuts for the second episode of the TV anime Mattaku Saikin no Tantei Tokitara, scheduled to begin broadcasting on July 8th, 2025, have been released. Episode 2 is titled "Obake wa Hiza o Nerae / Shin Hannin o Sagase!! / Mashiro Bakuhatsu 3-fun Mae".
Mattaku Saikin no Tantei Tokitara is a gag mystery based on the manga by Igarashi Masakuni, serialized in "Dengeki Maoh" with over 900,000 copies in circulation across the series. Keiichiro Nagumo, who once shone as a high school detective, is now a middle-aged man left behind by the times.

The story begins when Mashiro, an energetic high school girl, suddenly shows up at his doorstep, insisting she wants to become his assistant. And so starts a heart-pounding (dokidoki) daily life between the middle-aged detective and his unique beautiful high school girl (self-proclaimed) JK assistant who aspires to be a detective.
Episode 2 Synopsis

"Obake wa Hiza o Nerae"
Mashiro is scared of ghosts, while Nagumo believes ghosts are just illusions. Then, a request to get rid of a ghost… arrives…!!


"Shin Hannin o Sagase!!"
Nagumo is arrested on suspicion of underwear theft!! Mashiro and Nezu chase after the real culprit.


"Mashiro Bakuhatsu 3-fun Mae"
A bomber appears!! Should they cut the red wire or the white one…? Can Mashiro successfully defuse the bomb!?
TV anime Mattaku Saikin no Tantei Tokitara Episode 2, "Obake wa Hiza o Nerae / Shin Hannin o Sagase!! / Mashiro Bakuhatsu 3-fun Mae," will broadcast starting July 8th (Tuesday) on TOKYO MX, Sun TV, KBS Kyoto, BS11, and AT-X. Furthermore, it will have its terrestrial fastest solo advance streaming on ABEMA.
ON AIR
Broadcasting starts from July 1st (Tuesday) on TOKYO MX, Sun TV, KBS Kyoto, BS11, and AT-X!
AT-X: Every Tuesday at 23:30
[Repeat Broadcasts] Every Thursday at 11:30 / Every Monday at 17:30
TOKYO MX: Every Tuesday at 24:30
Sun TV: Every Tuesday at 24:30
KBS Kyoto: Every Tuesday at 24:30
BS11: Every Tuesday at 24:30
Mie TV: Starting July 9th, every Wednesday at 24:20
※Broadcast dates and times are subject to change without notice.
Terrestrial fastest solo advance streaming on ABEMA decided!
ABEMA: Starting July 1st (Tuesday), every Tuesday at 24:00
Streaming on other sites will also begin sequentially.
Staff
| Role | Name |
|---|---|
| Original Work | Mattaku Saikin no Tantei Tokitara (by Igarashi Masakuni / Serialized in Dengeki Maoh) |
| Director | Kujoo Rion |
| Series Composition | Ikeda Rintaro |
| Character Design / Chief Animation Director | Koga Isoroku |
| Art Director | Kuwajima Sooshi (Kusanagi) |
| Art Setting | Narita Takeyasu (Kusanagi) / Arai Kana |
| Color Design | Aihara Ayako |
| Prop Design | Eto Makoto |
| 2D Design | Kuramochi Misato / Masuda Saki (Asahi Production) |
| 3DCG | Sanzigen |
| Director of Photography | Hasegawa Naho (Asahi Production) |
| Editing | Enokida Misaki (Editz) |
| Sound Director | Ebina Yasunori |
| Sound Effects | Kurahashi Hiromune (Otonarium) |
| Music | Kikuya Tomoki |
| Music Production | KADOKAWA |
| Animation Production | LIDENFILMS |
Music
Opening Theme Song: "Suffer" by Okazaki Taiiku
Ending Theme Song: "GORI☆GORI Feez e-Girl!!" by Mashiro (CV: Hanazawa Kana) VS Yukai na Ojisan-tachi (CV: Sugita Tomokazu)
Cast
| Character | Voice Actor |
|---|---|
| Nagumo Keiichiro | Suwabe Junichi |
| Mashiro | Hanazawa Kana |
| Asunaro Yu | Yamaguchi Tomohiro |
| Kazamaki Hana | Hirano Aya |
| Nezu Taro | Kawanishi Kengo |
| Hoshino Azuha | Fairuuzu Ai |
| Fuu-chan | Watada Misaki |
| Kerberos | Horii Chado |
| Mimasaka Sooya | Kase Yasuyuki |
| Chichikubi Shishoku Ojisan | Sugita Tomokazu |
| Jujimunage Ojisan | Sugita Tomokazu |
| Rope Daisuki Ojisan | Sugita Tomokazu |
| Kochi | Iijima Hajime |
(C)2024 Igarashi Masakuni/KADOKAWA/Mattaku Saikin no Seisaku Iinkai Tokitara
《animeanime》
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