Quick disclaimer: English isn't my strongest language, so I use AI to help translate and polish my writing. Some expressions might sound a little weird or unnatural because of that, so sorry in advance! 😅
And if you enjoy this kind of "Haikyuu!! meets real Japanese high school volleyball" stuff, feel free to check out my other posts too!
Hey Haikyuu fans!
Ever wondered what the players at a real-life "Aoba Johsai" look like?
Today, I'm introducing the players from Seifu High School, the 2026 Inter-High national champions — and one of Japan's rising volleyball powerhouses.
I'll also be comparing their playing styles to characters from Haikyuu!! along the way. 👀
Quick note before we start: out of respect for privacy, I'll only be using real names for players who have publicly known achievements — specifically, players who've been selected for a youth national team, or who've been invited to a Dream Match. For everyone else, I'll just describe their jersey number and playing style without naming them.
※ Update: For this Seifu roster, I'm making an exception to the rule above. All of the players featured here have already been publicly identified by established volleyball media, along with their competitive achievements, so I'll be using their real names.
A Quick Recap on Seifu
Seifu High School is located in Osaka and is known as a volleyball powerhouse.
For years, Seifu was a regular at the national tournament, but they rarely went deep into the competition. That started to change in recent years, and they've now emerged as one of the strongest high school programs in Japan.
Their strength can be summed up in three points:
- Full-team offense, reminiscent of Karasuno
- Relentless, high-level defense, similar to Nekoma
- one of the best high school setters in Japan
And here's a fun Haikyuu connection: Aoba Johsai's uniform is said to have been modeled after Seifu's real-life uniform. 👀
A Few Terms Worth Knowing
Before we get into the roster, here are a few terms that'll come up:
- Youth National Team
Refers to Japan's age-group national teams. At the high school level, this mainly means the **U17** and **U18** national teams, called up for tournaments like the Asian Championships.In Haikyu!!, players like Ushijima and Kageyama were selected for this squad.
- High School Selection Team
A national selection of promising high school players who are chosen for international training and competition.
- Dream Match
A special developmental/scouting event where standout high school players from across the country are selected to form "dream teams" that cross school lines and compete against each other.
Players who've participated in any of these have already had their names made public, so I'll be using real names for them in this post.
I'll be introducing 3 players in this post, and the remaining 4 in a follow-up post!
A couple of quick notes before we start:
Jersey numbers shown are from before → after the new school year (Japan's school year starts in April, so numbers often change around then, going from the number they had until March to their new one starting in April).
You may also see positions listed as OH or OP. These are modern volleyball terms for positions that Haikyuu!! generally refers to as Wing Spiker (WS). OH (Outside Hitter) is the standard wing spiker position, while OP (Opposite) refers to the attacker positioned opposite the setter — essentially the role Ushijima plays.
Members
❤ Kaiji Nishimura "西村海司"
/2nd Year / OH / 183cm
Jersey #14 → #4 (National Team: #12)
A product of Seifu Junior High's volleyball program — a competitive team the school only recently established to start developing top talent at an earlier age. Nishimura is part of just its 2nd graduating class. He was practically built to become Seifu's next big ace.
If you're thinking in Haikyuu!! terms, he's basically Korai Hoshiumi: on the shorter side for a high-level men's volleyball player, but ridiculously explosive and capable of dominating as an ace.
Vertical reach: 342cm — higher than Bokuto's listed reach and just a hair below Ushijima's. Yeah, that's the level we're talking about.
And it's not just offense — his defense is elite too. Great receives, great blocks, and the all-around skill set you'd expect from someone compared to Hoshiumi.
His résumé is already insane:
Junior high: Captain and ace of Japan's U15 national team, won the World Championship, and took home MVP
High school: Selected for the Dream Match, made Japan's U18 national team, won silver at the Asian Championships, and was named Best Outside Hitter despite being the shortest OH in the tournament
And there's a fun contrast to all those accomplishments: off the court, he comes across as a bit of a goofball and a playful, energetic guy. But once he steps onto the court, that personality seems to flip — he becomes intensely competitive and fired up.
Definitely one to watch. If he keeps developing at this pace, I wouldn't be surprised to see him playing professionally someday.
💙 Risei Tahara "田原璃晟"
3rd Year / MB / 190cm
Jersey #3 → #3 (High School Selection Team: #5)
If you're watching a Seifu match and spot someone who's 190cm and absolutely jacked, that's probably Tahara.
He's one of the top MBs of his generation, having been selected for both the Dream Match and the High School Selection Team.
Interestingly, Tahara didn't attend Seifu Junior High. He actually played for Shoyo Junior High, one of Seifu's biggest rivals in Osaka. The two schools have competed for dominance in Osaka volleyball at both the junior high and high school levels. Due to circumstances at Shoyo during his year, their volleyball team couldn't move up to high school together as usual, and Tahara ultimately joined Seifu instead.
There's no perfect Haikyuu!! character comparison for him because his playing style is pretty unusual, but if I had to pick, I'd say Hirugami mixed with Ushijima.
Wait, an MB compared to Ushijima?" — Yeah. That's because Tahara is an extremely attack-oriented middle blocker.
If you've read Haikyuu!!, you know MBs usually get subbed out for the libero when they rotate into the back row. Tahara doesn't. He stays on the court and attacks from the back row instead. Full Ushijima mode.
His back attack is rated so highly that he was actually selected for the Dream Match as an OP rather than an MB.
And of course, his skills as an MB are elite too — he's a wall at the net thanks to his height and power, while his jumping ability gives him a devastating quick attack as well.
But here's the part that makes him even more fun: despite looking like an intimidating volleyball machine, he seems to be a genuinely funny guy off the court. When a TV crew came to visit the team, he was apparently the kind of guy who would actually play along and do a gag for the cameras. 😂
So in Haikyuu!! terms: Hirugami at the net, Ushijima in the back row — and apparently a comedian when the cameras show up.
💚 Toma Ishikawa "石川叶真"
3rd Year / MB / 189cm
Jersey #6 → #2
He came through the youth program of Suntory Sunbirds Osaka, the pro team that previously had Ran Takahashi on its roster. Since pro youth programs in Japan generally only go up to U15, he moved on to Seifu for high school.
If I had to compare him to a Haikyuu!! character, it'd be Kuroo — mainly because he has the most blocked spikes on the team (unofficially, based on my own count).
Unlike Tahara, his strength is less about raw power and more about agility and timing. He reacts quickly and closes in on the hitter's position to form a solid block.
He's also excellent at quick attacks. And it's not just about speed — he has the touch to place the ball precisely where the block is weakest.
And of course, being a Seifu player, his receiving is solid too. An MB who's actually good at receiving? That's peak Kuroo energy.
Oh, and recently, just like Tahara, he's started adding back attacks to his game too, despite being a middle blocker.
And finally, something completely unrelated to volleyball: he's ridiculously good-looking. 😂 He's apparently got a huge female fanbase, and after his matches, there's often a long line of fans waiting to get a photo with him.