__Height:__ 151 cm 
__School:__ Seishun Gakuen Chuugakkou 
__Grade:__ Year 1, Class 2 
__Dominant Arm:__ Right 
__Family:__ Older brother Junpei (21)  

Horio has two years of tennis experience and he consistently and loudly brags about his knowledge of tennis. But for a guy with such a big mouth, Horio does not have the goods to back up his words: he needed Echizen Ryoma's assistance in several tight situations. He and Echizen are in the same class. Horio's two best friends are Katou Kachirou and Mizuno Katsou. They are not regulars yet, but they always cheer on Seigaku! 

Middle school students fought fiercely against one another in a national tournament. Now, 50 chosen representatives return to fight again as high school students! 
The stage is the U-17 (Under Seventeen) Japanese Representative Training Camp. Middle school students have been invited for the first time to a camp known to produce the best Japanese tennis players. National champions from Seigaku, Hyotei, Rikkai, Shitenhoji... With all the rivals from the national tournament attending, everyone eagerly awaits their reunion. 
At first, the middle schoolers do not expect much from their high school opponents. However, the training camp is not so easy! Athletes with skills incomparable to those they previously faced and their mysterious coach appear before them. Faced with numerous demanding challenges, can the middle schoolers survive in this meritocratic training camp? 
(Source: Crunchyroll)

[Twitter](https://twitter.com/The__Saiyan) | [Instagram](https://www.instagram.com/the__saiyan/) 

**Diego Valente Becerril Ruiz** is a Mexican voice actor. He is known for being the Latin American Spanish voice of Mike Wheeler in _Stranger Things_.

[Website](https://www.kylendeporter.com/)

Echizen Ryoma is a young tennis prodigy who has won 4 consecutive tennis championships but who constantly lies in the shadow of his father, a former pro tennis player. He joins the Seishun Gakuen junior highschool, one of the best tennis schools in Japan, and there along with his teamates he learns to find his own type of tennis in an attempt to defeat his biggest obstacle of all: his father as well as himself.
 
(Source: Anime News Network)

An italian voice actor and ADR director, mostly known for his roles as [Yuugi Mutou](https://anilist.co/character/1374/) and [Atem](https://anilist.co/character/1375/), [Rock Lee](https://anilist.co/character/306/), [Jaco](https://anilist.co/character/135959/) and [Yuuga Aoyama](https://anilist.co/character/127042/).

[Instagram](https://www.instagram.com/thiagokepl) | [Twitter 1](https://twitter.com/TKeplmair) | [Twitter 2](https://twitter.com/ThiagoKeplmair) | [Facebook](https://www.facebook.com/thiagokeplmair) | [Youtube](https://www.youtube.com/@ThiagoKepl)

Thiago Keplmair is a Brazilian actor, voice actor, and dubbing director. He is the younger brother of [Tatiane Keplmair](https://anilist.co/staff/96442/).

__Non-Anime Roles:__
~!- Mason "Dipper" Pines (Gravity Falls)
- Daniel LaRusso (The Karate Kid [2nd dub] and The Karate Kid Part II [3rd dub])
- Harry Osborn (The Spectacular Spider-Man)
- Rock Lee (Naruto Shippūden: Ultimate Ninja Storm 4 and Naruto X Boruto: Ultimate Ninja Storm Connections)
- Inojin Yamanaka (Naruto Shippūden: Ultimate Ninja Storm 4 - Road to Boruto)
- Barreth "Barry" Goldberg (The Goldbergs)
- Kurt Hummel (1st dub; Glee)
- Gustav Patton "Gus" Griswald (Recess: School's Out, Recess: All Growed Down and Recess: Taking the Fifth Grade)
- Ethan Morgan (My Babysitter's a Vampire movie & series)
- Dewey Wilkerson (1st dub; Malcolm in the Middle)
- Azari T'Challa (Next Avengers: Heroes of Tomorrow)
- Luther Waffles (Zeke and Luther)
- Maxi Ponte (Violetta)
- Ernie Krinklesac (The Cleveland Show) 
- Matt Daehler (2nd dub; Teen Wolf)
- Woody Thomas (Fallout)
- Scott Israni (La Brea)
- Kevin McCallister (Home Alone 4: Taking Back the House)
- Eric Needles (Sidekick)
- Foggel / McLovin (2nd dub; Superbad)
!~

Seigaku continues their road to winning the National Championship, but only the best schools remain as they'll have to go toe-to-toe with old rivals and new foes in the National Tournament.
 
(Source: Anime News Network)

The National Tournament continues for Ryouma Echizen and the Seishun Academy Boys' Tennis Team as they face off against last year's semifinalist, Shitenhouji Middle School. As winners of the Kansai Regionals, Shitenhouji is one of the top contenders to win this year's tournament. What's more, each member of the Shitenhouji team has skills that are said to surpass their Seishun counterparts. Shitenhouji also has Kintarou Tooyama, another "super rookie" who rivals Ryouma in strength and technique. Seishun will have to push the limits of their abilities to stand a chance at defeating the Kansai champions in this East versus West matchup.

Ryoma Echizen just joined the Seishun Academy's tennis team, which is known for being one of the most competitive teams in Japan. Its members are incredibly talented, gifted, and athletic. With rigorous and extremely intense practices, the upperclassmen of the team expect the very best from themselves and they expect even more from the new members of the team. While most of the freshmen are on pins and needles hoping they won't get cut from the team, Ryoma Echizen is confident, cool, and collected. Some might even say he's cocky, but at least he's got the skills to back up his attitude. With his virtually unreturnable "twist serve," Ryoma is sure to make the starting team. Join Ryoma and the other first years, as they train hard, make friends, and try to find a place for themselves on the team. And meet Ryoma's cute but chronically shy classmate Sakuno Ryuzaki. She's got a big crush on Ryoma, but will he ever notice her? Ryoma Echizen is the Prince of Tennis. He may be ready for the Seishun Academy tennis team, but are THEY ready for HIM?
 
(Source: Viz Media)
 
Note: Includes one extra chapter.

Short Special releases with the DVDs that takes place before the events of the U-17.

This New Year special episode is a recap of the first episodes 1 to 12. However, there is a curious tournament with the regular players too.

Satoshi Horio