#INTRODUCTION Seitokai Yakuindomo is a comedy manga in 4-koma format, based almost entirely on silly jokes and sexual innuendos that accompany the reader through all of its 655 chapters. It makes no attempt at seriousness: comedy is both its plot and its greatest strength.
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THIS REVIEW WILL BE MOSTLY SPOILER-FREE, BUT THERE ISN’T MUCH TO SPOIL ANYWAY
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#PLOT AND PACING As mentioned earlier, this manga doesn’t really have a proper plot—it's a simple slice-of-life comedy filled with sexual jokes pretty much all the time.
The story begins with Takatoshi Tsuda enrolling in a formerly all-girls school that just became co-ed. Shortly after arriving, he gets “recruited” into the student council by the president, Shino Amakusa. From there, it’s a constant stream of absurd situations and endless innuendos.
Despite its length, the manga rarely feels heavy: the 4-koma format makes each chapter quick and light to read. Of course, once you get past chapter 400 or so, the repetition starts to kick in a little—but the character interactions and variety of settings help keep things fresh.
Small spoiler free example:
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#CHARACTERS The characters are definitely the series’ biggest strength. They’re all funny, well-defined, and each adds something different to the humor.
- Takatoshi Tsuda: The main protagonist. He mostly plays the straight man to the girls’ constant barrage of dirty jokes, trying to keep things somewhat normal.
- Shino Amakusa: The student council president. Smart and beautiful, but completely obsessed with innuendos. She drops them non-stop.
- Aria Shichijou: The council secretary and your classic rich girl. Her thoughts are often even more explicit than Shino’s, with scenes where embarrassing objects somehow magically appear in the classroom.
- Suzu Hagimura: The council treasurer. A genius with an IQ of 180 and easily the most mature of the group. She’s got a complex about her height (she looks like a kid), and a lot of the gags revolve around that.
There are other recurring characters who also add value to the series, but the main cast is more than enough to give you a good idea of the kind of humor you’re in for. 
#ART AND VISUAL STYLE The art is clean, consistent, and well-done from start to finish. Characters are always recognizable and nicely drawn, with simple but effective backgrounds. Reading is always clear and smooth.
If you’re not used to the 4-koma format, it might feel a bit awkward at first, but you get used to it quickly—and it actually becomes a strength thanks to its fast pace and punchy delivery.
#FINAL THOUGHTS In short, Seitokai Yakuindomo is a light, no-frills comedy—perfect for relaxing and having a good laugh without thinking too much. Despite its length, it rarely gets boring, though it might feel a bit repetitive over time.
I’d only recommend it to people who enjoy this kind of humor, or to those who’ve already seen the anime and want more. If your first impression is that it’s not your thing, chances are you won’t change your mind later on. Hope you enjoyed the review—if you're into this kind of comedy, go for it! 
The story begins with Takatoshi Tsuda enrolling in a formerly all-girls school that just became co-ed. Shortly after arriving, he gets “recruited” into the student council by the president, Shino Amakusa. From there, it’s a constant stream of absurd situations and endless innuendos.
Despite its length, the manga rarely feels heavy: the 4-koma format makes each chapter quick and light to read. Of course, once you get past chapter 400 or so, the repetition starts to kick in a little—but the character interactions and variety of settings help keep things fresh.
- Takatoshi Tsuda: The main protagonist. He mostly plays the straight man to the girls’ constant barrage of dirty jokes, trying to keep things somewhat normal.
- Shino Amakusa: The student council president. Smart and beautiful, but completely obsessed with innuendos. She drops them non-stop.
- Aria Shichijou: The council secretary and your classic rich girl. Her thoughts are often even more explicit than Shino’s, with scenes where embarrassing objects somehow magically appear in the classroom.
- Suzu Hagimura: The council treasurer. A genius with an IQ of 180 and easily the most mature of the group. She’s got a complex about her height (she looks like a kid), and a lot of the gags revolve around that.
There are other recurring characters who also add value to the series, but the main cast is more than enough to give you a good idea of the kind of humor you’re in for.
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If you’re not used to the 4-koma format, it might feel a bit awkward at first, but you get used to it quickly—and it actually becomes a strength thanks to its fast pace and punchy delivery.
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I’d only recommend it to people who enjoy this kind of humor, or to those who’ve already seen the anime and want more. If your first impression is that it’s not your thing, chances are you won’t change your mind later on.