If you liked
Chio-chan no Tsuugakuro
|
...then you might like
Asobi Asobase
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High school girls taking everything too seriously and doing fancy poses and serious/sad/crazy faces. The chapters are full of nonsense comedy, and every ordinary activity hovers between life and death. And every chapter is very creative and original.
If you liked
Anima Yell!
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...then you might like
K-On! Shuffle
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Cute girls doing cute things! Associations instead of clubs. Highschool life! Romanceless! Do your best! All those classical topics in the genre SoL, subgenre school life, are very well aborded cutely in both four-panel/yonkoma. These stories are the most advanced technology achieved by SoL science until the moment that I'm writing.
If you liked
Boku to Kanojo no Koi Log
|
...then you might like
Boku ni Koisuru Mechanical
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These series are very similar in originality. Let's create a short rom-com with an unusual/unexpected story: a mix between the harem cliche and time travel. But it won't be a harem, let alone a generical harem (furthermore, they don't have this tag). The result will be these series - they have the same formula.