Tonari no Seki-kun: The Master of Killing Time poster

Tonari no Seki-kun: The Master of Killing Time

TV Show TV-14 2014 7m/ep 7.5 /10 Ended
TV Tokyo A TV Tokyo Original
Created by Takuma Morishige

During class there is a quiet student named Rumi Yokoi who dutifully follows the rules, sits in the front row, and takes notes with precision. Her neighbor, Toshinari Seki, turns his desk into a stage for his own private experiments. Rather than focusing on the lesson, he invents games, doodles... Read more

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Streaming availability last verified: January 14, 2026

About Tonari no Seki-kun: The Master of Killing Time

During class there is a quiet student named Rumi Yokoi who dutifully follows the rules, sits in the front row, and takes notes with precision. Her neighbor, Toshinari Seki, turns his desk into a stage for his own private experiments. Rather than focusing on the lesson, he invents games, doodles elaborate diagrams, and builds tiny setups that unfold right under the teacher's nose. The results are distracting, yet oddly creative, and Rumi cannot help but be drawn into the spectacle. Each episode reveals a new pastime drawn from ordinary classroom items, from strategic paper battles to miniature puzzles. As Rumi tries to maintain order, she also discovers that Seki's unusual pastime is more engaging than she expected, and she begins to watch with a mixture of exasperation and curiosity.

Released in 2014 as a television anime, Tonari no Seki-kun comes from Takuma Morishige's manga and centers on the world created at one shared desk. The voice cast features Hiro Shimono as Seki and Kana Hanazawa as Yokoi, anchoring the humor with expressive performances.

The premise clicked with viewers who enjoy quick nonverbal humor and clever sight gags. The short born out of a single classroom setup lent itself to memorable clips and online sharing, turning a patient observer into a window into one boy's tiny, endlessly inventive world.

Critics noted the show's brisk pacing and its light yet sharp take on idle time. The main themes include the tension between rule keeping and playful experimentation, the way friendship grows from observation, and the idea that creativity can flourish in the margins of everyday life. The series relies on timing and visual humor rather than heavy plot, delivering a bright portrait of how one student transforms a routine classroom into a playground.

Details

Release Date
January 06, 2014
Episode Length
7m
Rating
TV-14
User Ratings
64 votes
Type
TV Series
Seasons
1
Episodes
21
Network
TV Tokyo, AT-X
Status
Ended
Genres
Animation, Comedy
Country
Japan
Studio
Shin-Ei Animation +4 more
External Links
View on IMDB

Official Trailer

Cast

Hiro Shimono

Hiro Shimono

Toshinari Seki (voice)

Kana Hanazawa

Kana Hanazawa

Rumi Yokoi (voice)

Created by: Takuma Morishige

Seasons (1 season, 21 episodes)

Season 1

Season 1

21 episodes - 2014

Frequently Asked Questions

Tonari no Seki-kun: The Master of Killing Time is available to stream on Crunchyroll.

Yes, Tonari no Seki-kun: The Master of Killing Time is available to stream on Crunchyroll.

Tonari no Seki-kun: The Master of Killing Time has 1 season with a total of 21 episodes.

With a rating of 7.5/10 from 64 viewers, Tonari no Seki-kun: The Master of Killing Time is well-regarded and recommended by viewers.

During class there is a quiet student named Rumi Yokoi who dutifully follows the rules, sits in the front row, and takes notes with precision. Her neighbor, Toshinari Seki, turns his desk into a stage for his own private experiments. Rather than focusing on the lesson, he invents games, doodles e...

Tonari no Seki-kun: The Master of Killing Time stars Hiro Shimono and Kana Hanazawa.

Tonari no Seki-kun: The Master of Killing Time was created by Takuma Morishige.

Tonari no Seki-kun: The Master of Killing Time was released on January 06, 2014.

Tonari no Seki-kun: The Master of Killing Time is a Animation and Comedy series.

Hiro Shimono voices Toshinari Seki in Tonari no Seki-kun. Toshinari is the desk mate who starts playing during class, distracting Rumi Yokoi.

Kana Hanazawa voices Rumi Yokoi. Rumi is the diligent student who sits near Seki and gets drawn into his antics.

No, Tonari no Seki-kun has 1 season with 21 episodes and the series has ended. It originally aired in 2014 and is complete.

Tonari no Seki-kun is rated TV-14. That means it's generally suitable for viewers 14 and up.