I am Really Weak at Volleyball

我打排球真的很弱 by 斯诺克 (Snooker)

"But everyone thinks I am very strong."

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Kobayashi Aotori, who was once an "ordinary person" in the volleyball club, has now transmigrated to become the "volleyball genius" who just defeated Kageyama.
Deciding to stay away from the volleyball monsters, Kobayashi Aotori received an acceptance letter from Shiratorizawa.
Kobayashi Aotori: "...Destroy it, I'm tired."

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After delivering a deadly spike, the highly conspicuous Kobayashi Aotori seriously says, "I'm really very weak."
Hinata: (loses color)
Tendou: Oh my~ Aotori-chan is still good at sarcasm, just like in middle school~
Oikawa: (dark-faced) Damn genius.
Kenma: ...Can't receive it, this spike could kill someone.

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Kobayashi Aotori, who considers himself ordinary, is completely unaware of how terrifying he is in the eyes of the "protagonists" he has identified.
This is the story of someone who thinks he's ordinary but is actually invincible, seeking the "protagonist" position he has always had.

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Content Warning: The male lead and female supporting character interact more, but they won't end up together. If you mind, please don't enter. Essentially a comedy, don't fact-check, just enjoy the fun.
P.S.: No romantic pairings throughout the story, and interactions with the opposite sex are that of regular friends. No romantic storyline, and the protagonist is invincible, engaging in intellectual battles with the air.