After defeating Yōsen High, Seirin is interviewed for Basketball Monthly. After the interview Kagami heads outside to visit with his old friend, Tatsuya Himuro, and Alex, but instead of being able to resolve their differences he runs into one Shōgo Haizaki of Fukuda Sōgō Academy. He is trying to flirt with Alex, making Kagami mad, but before Kagami can act Kise arrives on the scene and reveals that Haizaki was a starter on the Generation of Miracles team before he arrived. Kagami heads back in to ask Kuroko about this news only to find out the final quarterfinal will feature a showdown between Kise and Haizaki, with the winner moving on to face Seirin in the semifinals.

The old coach advises to Aomine to keep playing basketball until he can find a worthy opponent. Teiko wins the National finals. The old coach collapses and the young one takes over coaching the team. The team individually undergoes rapid growth in power. Aomine leaves mid-practice and the coach gives him permission to skip practices, leaving Aomine in even more despair. After an act of insubordination, Akashi goes head to head with Murasakibara, and just when Akashi is about to lose, he switches personalities and crushes Murasakibara. Akashi gives the rest of the team permission to skip practice as long as they win matches. He later tells Kuroko who failed to convince Aomine that there is two of him.

Seirin's first years participate in a street basketball tournament where they meet Tatsuya Himuro and Atsushi Murasakibara from Yōsen High.

While recruiting for the basketball club, the Seirin Private High school has managed to pick up some impressive players; a power house, former American player, and a member of the “Generation of Miracles.

In the last minute of the fourth quarter, Murasakibara enters the Zone. However, Kagami had so much spirit to win that he exceeded his limits and used meteor jam, his new shot that he can use only in the Zone. He jammed the ball in, scoring the final point. However, Atsushi still had determination and went for his shot. However, Murasakibara could not jump and Kuroko blocked his shot, handing victory over to Seirin. Murasakibara broke down after the game, revealing that he actually loves basketball, which enabled him to enter the Zone. Kuroko also tells Kagami to reconcile with Himuro, which he does.

Seirin first takes on Senshinkan High, who the former has lost twice to in the past 2 years. Seirin takes the game 78-61. Shutoku also took their first game 123-51 against Kirisaki Daiichi, which the first string players did not even play, and instead are watching the Seirin game, confident of winning the next 2 games. Kiyoshi meets Hanamiya Makoto from Kirisaki Daiichi, also one of the Uncrowned Kings. In their previous match-up, Kiyoshi got injured because of Hanamiya. Seirin-Shutoku match is up next. Midorima keeps on getting blocked by Kagami. It is revealed that Midorima wants to tire Kagami by making Kagami jump to block when Midorima is about to shoot. With no score yet, who will strike first blood? Who will win the Kagami-Midorima match-up?

While the match between Seirin and Nakamiya South progresses, at Touou Academy's library, Imayoshi and Susa discussed about Seirin's possibility of winning the match while studying. Seirin indeed are in a difficult situation of beating Nakamiya South. Imayoshi said that Seirin have not given their 120% like what the players did against Touou, and they may have gotten a little overconfident as they have defeated Tōō.

As the match continues in the fourth quarter, Yōsen keeps on maintaining its lead and with Kiyoshi out, the Seirin players face tough times scoring any points. Seirin starts to use the same full court 2-3 man-to-man defense like what Yosen uses, but Himuro and Murasakibara are easily able to overcome it. However, Kagami's spirit to win gets him into the Zone once again.After some time in the Zone, Seirin cuts down the lead to four points.

After an awkward dinner involving rival basketball teams, Kuroko happens upon a dog that looks just like him. The dog quickly gathered favor with everybody except for one.

The street ball game gets called off due to heavy rain. Meanwhile, Momoi reveals that Aomine did not play in the Inter-High finals due to injuries that led her to request the coach to drop him to the bench. She also revealed the reasons why Murasakibara and Seijūrō Akashi from Rakuzan High, did not play as well. Later on, Kuroko shows Momoi his newest technique which if it is refined well, no one can ever stop him.

The Winter Cup preliminaries gets under way, with the newly-looked Seirin taking on Josei High. This marks the official return for center, 'Iron Heart' Kiyoshi Teppei since recovering from his leg injury. Although Kagami gets less involved due to him being double teamed, with Kiyoshi's unpredictable play and rebounds being the main focuses, Seirin gets even better in terms of offense and defense. Seirin takes control of the whole match, winning it by the score of 108-61. However, the next few qualifying matches might just get tougher for Seirin.

Up next is Seirin against Kirisaki Daiichi. As usual, Kirisaki Daiichi plays dirty, on offense and defense, trying to injure the opposing players. However, Kiyoshi still pushes on and gets his spirit really burned up, but while he's fired up Hyuga can't seem make any of his 3-pointers. Will Seirin get over this extremely rough matchup?

After the winter cup prelimenaries, Seirin had their rest at a hotspring. At the same time, Tōō Academy is there, it's a surprise for them that they will fight in the first round. Will Seirin be nervous or they will be filled with excitement?

The final four of Winter Cup has finally been decided: Rakuzan, Shutoku, Seirin, and Kaijo. However, on the day of the semi-finals, Kuroko and Kagami both realized their basketball shoes were broken and hurriedly get on their way to buy new shoes. However, Kagami can't find shoes in his size! Thanks to Kuroko's suggestion, they seek advice from Momoi, and her reply is that he should use Aomine's shoes, as they both have the same shoe size. Of course, Aomine wasn't going to meekly hand a pair over, and they end up in a one-on-one with the shoes as the prize! Daiki quickly won but still offered the shoes to Kagami. Taiga grudgingly accepts and says that he'll take it for now but their competition isn't over yet. Taiga and Tetsuya rushed to watch the first semi-final match of the Winter Cup: Rakuzan Vs. Shutoku.

Before anyone can become an official member of the Basketball Club, they first must do display courage. Afterwards, a surprising guest appears on the school grounds with a shocking offer.

Seirin basketball club is playing a practice game at Kaijo High School, the school where Kise attends. After a display of power from Kagami, it forces the Kaijo coach to take Seirin serious.

The only way to stop Kise is to challenge him with a style he can't copy, Kurokos! The new offensive from Seirin is closing the point gap, until an injury might derail Serin's chance at victory.

Serin is victorious against Kaijo, barely. It is a shock to Kise, who has never lost in his life. After the game, another former Teiko Middle school player, Midorima, has a few words for Kise.

Serins first opponent in the inter-high tournament is Shinkyo high, a middle tier school until last year. With the addition of a two meter tall, 87 kilogram player from Senegal, Shinkyo is a new threat to Serins championship hopes.

After their win over Shinkyo, Seirin goes on to crush their next few opponents. Realizing too much confidence is brewing, the team is taken to watch a Shutoku match. After seeing how Shutoku, one of the three Emperor teams of basketball, dominates their opposition, the team realizes they have a long way to go if they are to improve and contend for the title.

Seirin takes on Seiho, a squad built around an invincible defense. The unorthodox manner in the way Seiko moves is finally understood, but it may be too late. Will Seirin's streak finally be shutdown?

Seirin's game continues against Seiho with neither team giving up points. Kuroko and Kagami are pulled after the first quarter, to preserve their strength. Can their team mates bring home the victory?

Kuroko has rejoined the game in the final moments, but it seems that one of the players has him figured out. Seirin is playing hard, but if they win, will they have the strength to play a 2nd game

Seirin is holding their own against Shutoku, but in the 2nd half Midorima and Takao’s abilities are unleashed, shutting down Seirin’s game completely

The pressure of the game is causing Kagami skills to rapidly increase; he continues to score keeping Seirin in the game. But his thoughts are turning darker and self-serving