A/N: Hey all! I wrote this fic because a tumblr post I made with the concept ended up getting more than 300 notes, and everyone wanted a fic for it. I'd originally planned to stop it where this chapter ends, so you can treat this chapter as a one shot if you wish, but most people wanted a continuation. The first chapter is short because it's basically straight from the tumblr post. The next chapters will be longer. I think it's going to be 2 or 3 chapters long. Please forgive the dumb uber-cliche title. Also this is my first Haikyuu! fic that has actual plot, so it might not be great.
Link to tumblr post: post/115806322907/how-i-think-the-small-giant-hears-about-hinata

Of A Feather

Chapter 1

Seta Toshiro, alumnus of Karasuno High School, yawned ferociously as he plopped groggily onto the couch, balancing a cereal bowl in one hand, and the remote control in the other. He grinned, settling himself into a more comfortable position, and turned on the TV. Today was the start of the Spring High National Volleyball Championships, and Seta, as usual, was watching. His college hadn't had a volleyball team, but when he'd played in high school his team had been at their golden age, and his love of the sport was still alive and kicking.

An announcer of some kind was just finishing up his blurb, and the television switched back to the current game. Seta took a bite of his cereal as the cameras went to the court. He nearly choked. His spoon dropped forgotten into his bowl. Milk spattered everywhere, but Seta payed no heed, his eyes glued to the television. More specifically, to the volleyball players, clad in black and orange jerseys.

That was their uniforms.

His school.

"No way!" he whispered.

Karasuno was in the Nationals.

Seta looked carefully at the team on the court as the announcer described them. They didn't seem too outstanding at first glance. There were more first years playing than second or third years. Only one or two of the players had any noticeable height. A tiny red-headed first year, #10, was a middle blocker, for no discernible reason. Seta had been a middle blocker himself, he knew it couldn't be easy at that height. The kid looked more suited to libero, although, receives didn't seem to be his strong point either.

But Seta had learned long ago that appearances (and size), can be deceiving. It couldn't have been an accident that they'd made it. There was something about that shorty...

And then it happened.

Quick, zippy little #10 ran, and jumped...no...took flight. Before Seta could fully register what had happened, the ball had smacked into the floor on the other side of the court. Seta's jaw dropped.

"What...just...what?" he asked the empty room. #10 landed, whooping. His entire team did a mini-celebration, as he and the setter high-fived. The entire scene, the feeling of pride and love and trust surrounding the tiny spiker, was so familiar that Seta's heart wanted to burst.

"Oh, Adachi's gonna dig this!"

He pulled out his cell phone, scrolling through his contacts (every one of which was a nickname) until he found it. "Small Giant" As the phone rang, Seta couldn't stop his grin.

"Hello? Seta-senpai, is that you?!" a cheerfully incredulous voice greeted him over the line.

"Hey, ace!" Seta replied, "Get a load of this! They found another one who can fly!"

A/N: I decided to give the Small Giant the name Adachi Hiroto, because giving him a name makes the next few chapters a lot easier and less awkward to write. (Because otherwise it's like: "Oh, I've known this dude since high school, but I'm only going to call him Small Giant and Ace whenever I address him or whenever he is mentioned in the story." That's doesn't give the kind of vibe I want between Seta and the Small Giant.) Deal with it. If we ever get a canon name for him I'll come back and switch it for this one. Also, credit for the last sentence of the last line goes to .com, who reblogged my post and put that part in the tags. I really liked it so I added it. The rest of the last line is mine.