After Ryoma is forced to withdraw from the Japan U-17 training camp, Ryoga invites him to play for the US team.

Teams from all over the world competing in the U-17 World Cup gather to start things off with the Pre-World Cup exhibition matches.

Pre-World Cup (World Cup), 3rd match. In the champion Germany, captain Bork finally goes to the court. The challenge is the Tokugawa & Yukimura pair. However, shortly after the start of the game, Yukimura was "deprived of his five senses." Tokugawa will fight alone against the German pair while hiding Yukimura. Meanwhile, Yukimura was also fighting loneliness. Yukimura's ears, deprived of his five senses and fighting "fear alone" in the closed darkness, heard his voice overcoming it while being deprived of his five senses.

Japan's Pre-World Cup match ended. After seeing the match and leaving the venue, Ryoma encounters Sakurano, who is entwined by local bad guys. Doberman attacks Ryoma, who confronts the bad guys while sheltering Sakurano. It was a boy who straddled Hakuba who rejected it. He shoots the ball with a tennis racket while straddling a horse and drives away the bad guys. Ryoma, who was mistaken for a boyfriend by a boy who was fascinated by Sakurano, was challenged to play a game, and they would fight each other in tennis while riding horses.

Finally, the World Cup main draw will begin. Japan's first opponent is the Greek national team. If they manage to beat them, their next round opponent would be the Australia who has managed to beat, Switzerland, who was ranked 2nd in the world.

In the Japan team's first doubles match against Australia, Sanada's tricky shots initially baffle his opponents, but they quickly adapt their defense.

The Japan team plays with renewed vigor following Atobe’s cunning ruse. Finally figuring out Milman’s Tachyon serve, Fuji moves to break the deadlock.

Discouraged by two straight doubles losses, the Japan team heads into the singles matches. Akutsu goes up against the menacing Swiss captain, Amadeus.

After seeing Akutsu's match against Switzerland, Ryoma seems to have developed some feelings of doubt within him...

Ryoma finally returns to the Japan national team. With Ryoma as a member, the opponent in the quarterfinals will be France, ranked 3rd in the world. Shiraishi, who was selected as a member, was worried about whether his "honor student" tennis would be able to compete against the world.

After Yanagi rebukes Mori for his past attitude toward training, the two must overcome their differences if they want to beat their French opponents.

Ryoma's match with Chardard continues in three singles matches of Japan versus France; the victorious team will advance to play Germany.

Ryoma's match with Chardard continues.

The Japanese team is resolutely preparing for the match against Germany, aiming to advance to the finals afterward. Captain Byodoin trusts his players, who do not give up despite this challenge.

In the first match of the U-17 World Cup Semifinals it's Team Japan's Oni versus Team Germany's Q･P. Can Oni hold his ground against Team Germany's No. 2 player?

The first match of the World Cup Semifinals continues between Oni and Q･P. Oni shines with a mysterious light that resembles the Pinnacle of Perfection and becomes seemingly invincible.

In the next match, Team Japan's Duke and Nio face off against Schneider and Belti, two of the three tennis pros on Team Germany.

Continuing the World Cup Semifinals is Team Germany’s Tezuka versus Team Japan’s Yukimura in #2 singles. Tezuka is now their opponent, so Team Japan goes all out to gain victory against their former teammate.

Yukimura prepares to counter Tezuka's Pinnacle of Perfection in order to prove to Akaya, his team, and himself that you don't have to give up on tennis even if you can't use the Pinnacle of Perfection.

Every time Yukimura takes away Tezuka's five senses, Tezuka regaains them using the Pinnacle of Perfection. Can Yukimura be able to turn the tables or will Tezuka hold on to his lead?

In the other semifinals bracket, Team USA is competing with Team Spain for a spot at the finals. Ryoga Echizen, who is now playing for Team Spain, clashes with Ralph Reinhart of Team USA.

Kirihara is determined to beat Siegfried's Pinnacle of Perfection with his Focus Burst. The two battle it out as their doubles partners watch on.

The second set of the doubles match between Tanegashima-Kirihara and Bismarck-Siegfried gets drawn into a tiebreak. If Team Japan loses this set, they will be eliminated from the semifinals.

The doubles pairs Tanegashima-Kirihara and Bismarck-Siegfried ramp it up for this final set, showing teamwork that activates skills never seen before.

In the last match of the semifinals, Byodoin and Volk go head-to-head in a mighty battle to bring their teams through to the finals.

Byodoin puts his life on the line against Germany's Volk in an intense epilogue to the World Cup semifinals.