Can a Socially Anxious Introvert Play Volleyball?

Karasuno got a new manager.

He's 180 centimeters tall, handsome, shy, and a little socially awkward...

But there's one problem:

His name is Hinata Shoyo, exactly the same name, using the same kanji, as the short first-year in Karasuno's oddball duo.

Even Hinata himself thinks that the cousin who suddenly appeared at his house is a lot like him.

"Are they twins? Doppelgangers?"

"Apart from their height and grades, they're exactly alike!"

"Are the seniors serious...? The difference is obviously that one's a high schooler and the other's an elementary schooler!"

As Little Hinata shouts, "Kageyama, get back here!" Big Hinata gets a nervous bead of sweat on his forehead...

*

Hinata Shoyo had been dragged into playing volleyball by his classmate Kageyama Tobio for no apparent reason. At last, he worked up the courage to push open the gym doors...

But what came into view was no longer the familiar world!

There was a "Hinata Shoyo" in this world too, but this one was cheerful and energetic, always warming everyone around him with his enthusiasm.

He was completely different from Hinata...

At the sight of the other "Hinata," all the courage Big Hinata had worked so hard to muster vanished instantly.

Could someone like him really play volleyball too?

A certain radiant little orange-haired puppy: You can! Of course you can!!!

But that raised another question...

Orange-haired puppy: If we're both Hinata Shoyo... then where did my missing 180-centimeter, top-student life go?

A certain sharp-tongued, cocky guy: Ha!

※A kind of self-redemption story?

※Parallel worlds (he'll go back)

※Probably an ensemble cast

※OOC is on me; the characters belong to the original author

Theme: Volleyball is a sport that makes you look up and move forward