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)
Ryoma Echizen
Kunimitsu Tezuka
Shuichiro Oishi
Shuusuke Fuji
Eiji Kikumaru
Takashi Kawamura
Sadaharu Inui
Takeshi Momoshiro
Kaoru Kaidou
Akaya Kirihara
Akira Kamio
Genichirou Sanada
Keigo Atobe
Kiyosumi Sengoku
Bunta Marui
Kintarou Tooyama
Kuranosuke Shiraishi
Yuushi Oshitari
Shinji Ibu
Hajime Mizuki
Seigaku and other middle school students (with a total of 50 middle school students) are invited to the U-17 selection camp. Ryoma also comes back from America to participate. The high school students there dislike the middle school students.
Momoshiro gets paired up immediately in a shuffle match, being the first middle schooler to do so. His opponent is Jujiroh Oni.
The middle schoolers pair up with friends, and find out that they will be playing singles tie-breaker matches against their partner.
Tezuka plays Kaidō and Atobe plays Hiyoshi. Both captains have a plan from the start to teach their juniors a lesson before defeating them. Meanwhile, Ryoma and Kintarō are playing matches with Tokugawa and Oni.
The matches continue, and the losers are forced to leave the camp. What happens now?
The winning middle school team start the next stage of their hard training right away. The losers face the biggest challenge of their lifetime given to them by the mental coach, Saitō.
The losers reach the mountain peak and meet a drunken coach in primitive clothing.
Ryoma, Tanishi, and Kenya receive a letter from Coach Nyudo asking them to sneak into the training camp to acquire training supplies.
The middle schoolers, once again, have to face the challenging demands of Coach Mifune.
At the training camp in the mountains, the middle schoolers are given rackets filled with lead and are forced to hit balls with the rackets. Meanwhile, in the U-17 camp, Court 5 have team shuffle matches with Court 3.
As Tezuka leaves, Fuji challenges him to a match.
The Black Jerseys challenge Court 2.
The matches between the Black Jerseys and the camp winners concludes.