by The upcoming Blue Box Season 2 has revealed advance stills and new story details for Episode 26, “Déjà Vu,” ahead of its October premiere. The anime has also released an interview and comments from Yoshino Aoyama, who joins the cast in Season 2 as the new character Yumeka Kido.
Based on the popular manga by Kouji Miura, Blue Box combines sports, romance, school life, friendship, and coming-of-age drama. The story follows high school badminton player Taiki Inomata, who has long admired basketball star Chinatsu Kano. Their relationship gradually develops as they navigate school, club activities, competition, friendship, and complicated feelings.
Season 2 will begin broadcasting in Japan on October 4, 2026, at 4:30 p.m., airing every Sunday on the TBS network of 28 stations nationwide.
Episode 26 will pick up the story with Taiki preparing for his long-awaited date with Chinatsu. What begins as a promising romantic moment takes an unexpected turn when Kazuma Matsuoka, a senior from the boys’ basketball team, appears.
Meanwhile, Season 2 introduces Yumeka Kido, a character whose complicated feelings toward Chinatsu add a new emotional dimension to the story.
What Is Blue Box About?
Blue Box is a coming-of-age sports romance manga written and illustrated by Kouji Miura.
The manga began serialization in Weekly Shonen Jump in April 2021 and became known for combining sports competition with a carefully developed romance.
Rather than focusing only on winning tournaments or advancing a romantic relationship, the series follows teenagers as they balance their ambitions, friendships, insecurities, family circumstances, and feelings for other people.
At the center of the story is Taiki Inomata, a member of Eimei High School’s boys’ badminton team.
Taiki has admired Chinatsu Kano, a senior student and star player on the girls’ basketball team, for a long time.
The two regularly see each other during early-morning practice sessions.
Taiki initially admires Chinatsu from a distance, but their relationship changes when an unexpected living arrangement brings them much closer together.
From that point forward, Taiki has to balance his feelings for Chinatsu with his determination to improve as a badminton player.
That combination of romance and sports is one of the defining characteristics of Blue Box.
Blue Box Season 2 Release Date
Blue Box Season 2 will premiere on October 4, 2026.
The anime will air every Sunday at 4:30 p.m. on the TBS network of 28 stations across Japan.
The second season continues directly from the events of the first season, which aired from October 2024 through March 2025.
For viewers following the series by episode number, Season 2 begins with Episode 26.
This means the story continues without resetting the episode numbering.
The second season also introduces new characters and emotional conflicts while continuing the relationships established during Season 1.
Episode 26 Is Titled “Déjà Vu”
The first episode of Season 2 is titled “Déjà Vu.”
The episode centers on Taiki and Chinatsu as they finally spend time together on their long-awaited date.
Taiki is naturally excited about the opportunity.
After everything the two have experienced, simply spending time together outside their usual school and club environments gives Taiki a chance to see Chinatsu in a different way.
The pair go shopping and enjoy their time together.
For Taiki, the date seems to be progressing exactly as he hoped.
However, the atmosphere changes when Kazuma Matsuoka, a senior from the boys’ basketball team, unexpectedly appears.
His arrival disrupts the peaceful date and creates a series of unexpected situations for Taiki and Chinatsu.
Despite the interruptions, the two eventually find themselves heading to a certain location as evening approaches.
As the sun begins to set, Taiki makes an important decision.
He decides that it is finally time to tell Chinatsu how he feels.
This makes Episode 26 particularly important for viewers who have been following Taiki and Chinatsu’s relationship since the beginning of the anime.
Advance Stills Show Taiki and Chinatsu’s Date
The newly released advance stills provide a preview of the upcoming episode and highlight the relationship between Taiki and Chinatsu.
The images show the pair away from their normal school and club routines, giving the episode a different atmosphere from the usual sports-focused scenes.
Their date is an important moment because Taiki has spent much of the series trying to understand his feelings and determine how to approach Chinatsu.
The episode’s title, “Déjà Vu,” also suggests that memories and familiar emotions may play an important role in the story.
However, the appearance of Matsuoka ensures that the date does not go exactly as planned.
The combination of romance, comedy, awkward situations, and emotional tension is characteristic of Blue Box.
Taiki Is Ready to Confess His Feelings
One of the most important moments in Episode 26 is Taiki’s decision to confess to Chinatsu.
Taiki has admired Chinatsu for a long time.
However, because they are both dedicated athletes with demanding club schedules, their relationship has developed gradually.
Taiki has also had to deal with the complicated feelings surrounding his friendships with other characters, particularly Hina Chono.
His relationship with Chinatsu therefore cannot be separated from his personal growth.
By the time Season 2 begins, Taiki has become more confident and mature.
The date provides an opportunity for him to finally express what he has been feeling.
As evening falls, he gathers the courage to take that step.
Whether the moment goes exactly as planned is one of the major questions Episode 26 leaves viewers with.
Who Is Yumeka Kido?
Season 2 introduces Yumeka Kido, voiced by Yoshino Aoyama.
Yumeka has a previous connection to Chinatsu, particularly through basketball.
Unlike many of the characters introduced during the first season, Yumeka brings a more complicated emotional history into the story.
Aoyama describes Yumeka as a character who carries negative emotions that have not been explored as directly in the story before.
This makes Yumeka different from characters whose motivations are easier to understand at first glance.
Her feelings are connected to admiration, frustration, regret, and personal setbacks.
That emotional complexity is expected to become an important part of Season 2.
Yoshino Aoyama Talks About Playing Yumeka
In her interview, Yoshino Aoyama explained that she had actually auditioned for Season 1 as well.
Her first impression of Blue Box was that its characters were highly appealing and that many of them could be described as “good kids.”
She also praised the series for its careful portrayal of character psychology.
Aoyama described Blue Box as a work that fits the idea of a coming-of-age ensemble drama, because it gives attention to the individual emotions and experiences of its characters.
Her comments also reveal how carefully she approached Yumeka.
Yumeka is not simply angry or jealous.
Her emotions are more complicated.
She admires Chinatsu, but that admiration can also make her aware of her own frustrations.
In Aoyama’s interpretation, the positive feeling of admiration can become painful when Yumeka thinks:
“Chinatsu can do it, but I can’t.”
That contrast became an important part of how Aoyama approached the role.
Yumeka’s Admiration for Chinatsu Has Another Side
One of the most interesting aspects of Yumeka’s character is the complexity of her feelings toward Chinatsu.
Admiration is normally considered a positive emotion.
However, admiration can also become painful when someone compares themselves to the person they admire.
For Yumeka, Chinatsu represents both an inspiration and a reminder of her own setbacks.
This creates an emotional conflict.
Yumeka does not simply dislike Chinatsu.
She has complicated feelings because she once looked up to her.
The more Yumeka compares herself with Chinatsu, the more difficult those feelings become.
Aoyama explained that she thought carefully about how much of Yumeka’s negative emotions should be visible during her performance.
The goal was not to make Yumeka express everything directly.
Instead, the character needed to communicate feelings through subtle changes in tone, expression, and interaction.
Yumeka’s Past With Basketball
Yumeka’s relationship with basketball is another important part of her character.
According to Aoyama, Yumeka once genuinely loved playing basketball.
That means her present attitude cannot simply be understood without considering her past.
The version of Yumeka who loved basketball expressed herself differently.
Aoyama therefore tried to approach scenes from Yumeka’s past with a different emotional mindset.
The contrast between Yumeka’s former enthusiasm and her current emotional state adds another layer to her character.
Her past helps explain why her relationship with Chinatsu is so complicated.
Meeting Chinatsu and experiencing changes in her relationships eventually contributed to Yumeka leaving basketball.
For someone who once genuinely loved the sport, that loss carries significant emotional weight.
Yoshino Aoyama and Reina Ueda’s Performance
Yumeka’s relationship with Chinatsu also meant that Aoyama had to work closely with Reina Ueda, the voice actress behind Chinatsu.
Aoyama spoke highly of Ueda and described her as a senior she greatly respects both professionally and personally.
However, she intentionally maintained some emotional distance while recording scenes involving Yumeka and Chinatsu.
This was not because of any problem between the performers.
Instead, it was a deliberate acting choice based on the characters’ relationship.
Aoyama felt that Yumeka and Chinatsu should not appear overly comfortable with each other because of their unresolved history.
Interestingly, Aoyama revealed that Ueda had a similar idea.
Ueda reportedly also tried to avoid excessive physical interaction with Aoyama until the relationship between Chinatsu and Yumeka developed further in the story.
Shoya Chiba, who voices Taiki, was also sensitive to the dynamic between the two characters.
Aoyama said she could feel the experience of the performers who had already been involved with the series since Season 1.
The Recording Studio Had a Warm Atmosphere
Despite the emotional tension between their characters, Aoyama described the recording studio atmosphere as bright and friendly.
She said there was frequently laughter in the studio, creating an atmosphere that reflected the overall world of Blue Box.
The first season had aired for two consecutive courses, giving the returning cast members plenty of time to develop familiarity with one another.
Aoyama, however, was joining the production as a new cast member.
Naturally, she felt nervous at first.
She was also aware that she was entering an established group of performers who had already worked together on Season 1.
Her comments suggest that the experienced cast helped create a welcoming environment while still respecting the emotional boundaries required by the story.
Aoyama’s Most Memorable Scene
When asked about the most memorable part of the beginning of Season 2, Aoyama pointed to the reunion between Chinatsu and Yumeka.
The scene is important because it brings their complicated history to the surface.
Aoyama explained that she put considerable effort into performing the exchange with Ueda while carrying Yumeka’s painful emotions.
This reunion is likely to become one of the emotional foundations of the new season.
For viewers who have been following Chinatsu since Season 1, Yumeka’s arrival provides new context for Chinatsu’s past and personality.
Blue Box Season 2 Theme Songs
Season 2 also features two new theme songs.
The opening theme is “Anata no Hana no Iro” by aiko.
The ending theme is “blue in” by elsewhere kikou.
The two artists bring very different musical identities to the new season.
Aoyama revealed that the theme songs were already being discussed around the recording environment.
She immediately recognized the sound of aiko when she heard the opening and felt that it had to be the announced artist.
The choice of music is particularly important for Blue Box because the series uses its opening and ending sequences to complement the emotional tone of its characters.
Aoyama also suggested that viewers may understand the reason behind the choice of “blue in” as the ending theme more clearly as the Season 2 story develops.
New Season, New Emotional Conflict
Season 1 established the basic relationship between Taiki and Chinatsu.
It also introduced Hina and other members of Taiki’s school and sports circle.
Season 2 expands the emotional world by introducing Yumeka.
Her arrival adds another connection to Chinatsu’s past and creates new questions about how their previous relationship ended.
This means Season 2 is not simply about whether Taiki and Chinatsu will become closer.
It is also about how the characters deal with their past experiences.
Yumeka’s story introduces themes such as:
- Admiration
- Jealousy
- Regret
- Failure
- Friendship
- Self-comparison
- Lost opportunities
- Personal growth
These themes fit naturally into Blue Box because the series has always focused on the emotional experiences of teenagers as much as their athletic ambitions.
Sports Remain at the Heart of Blue Box
Although the romantic story receives considerable attention, sports remain a major part of Blue Box.
Taiki is a badminton player.
Chinatsu is a basketball player.
Their sports careers influence how they spend their time, who they interact with, and how they view themselves.
For these characters, club activities are not merely background elements.
Sports are connected to their identities.
Success and failure in competition can affect their confidence.
Injuries, losses, training, and team relationships can influence their emotions.
This is why the romantic development in Blue Box feels closely connected to the characters’ sporting lives.
Why Yumeka Is an Important Addition
Yumeka’s role could give Season 2 a different emotional tone.
The first season focused heavily on the gradual development of relationships.
Yumeka brings a story about what happens when admiration and friendship become complicated by disappointment.
Her character demonstrates that not every emotional conflict comes from a love triangle.
Sometimes people struggle because they compare themselves with someone they once admired.
Sometimes a friend can become a painful reminder of what a person feels they have lost.
This makes Yumeka’s story relatable beyond the world of sports.
Aoyama hopes that viewers who have experienced setbacks of their own will be able to understand Yumeka’s emotions.
Blue Box Manga Reaches Its Final Chapter
The anime is also arriving as the original Blue Box manga approaches the end of its publication history.
The series, created by Kouji Miura, began in 2021 and built a large readership during its serialization in Weekly Shonen Jump.
The manga’s final chapters bring the long-running story toward its conclusion, while the anime adaptation continues bringing earlier portions of the story to television.
This creates an interesting moment for fans because manga readers already know how the broader story develops, while anime-only viewers are experiencing these events for the first time.
For newcomers, however, Season 2 remains a continuation of the character-driven story established in Season 1.
Blue Box Season 2 Staff
The second season also features changes in its production team.
The current staff includes:
- Director: Daisuke Sakō
- Series Composition: Yuko Kakihara
- Character Design and Chief Animation Director: Miho Tanino
- Color Design: Narumi Konno
- Art Director: Anri Ishida
- Director of Photography: Yuki Kawashita
- Sound Director: Jin Aketagawa
- Music: Takashi Oomama
- Animation Production: Electric Circus
- Creative Production: UNLIMITED PRODUCE by TMS
These credits differ from the first season, with Electric Circus handling animation production for Season 2.
The new team will continue adapting Kouji Miura’s character-focused storytelling while moving the anime into its next major storyline.
What Can New Viewers Expect From Season 2?
For people discovering Blue Box for the first time, the series can be described as a combination of:
Romance + Sports + School Life + Coming-of-Age Drama
The story does not focus exclusively on romance.
Taiki continues working toward improving as a badminton player.
Chinatsu continues pursuing her basketball ambitions.
Hina and the other supporting characters also have their own goals and emotional struggles.
Season 2 expands these relationships rather than abandoning the sports setting.
The addition of Yumeka makes the emotional story broader, particularly because her past is connected to Chinatsu.
What to Watch for in Episode 26
Episode 26 has several elements that fans should pay attention to.
Taiki and Chinatsu’s Date
The long-awaited date allows Taiki and Chinatsu to spend time together outside their usual routines.
Matsuoka’s Unexpected Appearance
The basketball senior’s arrival changes the atmosphere and creates unexpected complications.
The Evening Scene
As the day comes to an end, Taiki decides to confess his feelings.
Yumeka’s Story
Although the episode primarily focuses on Taiki and Chinatsu, Yumeka’s arrival sets up an important emotional storyline for the new season.
Chinatsu and Yumeka’s Past
Their reunion will help explain why Yumeka carries such complicated feelings toward Chinatsu.
Yoshino Aoyama’s Message to Fans
Aoyama said she feels honored to be part of Blue Box, especially because the series has developed fans not only in Japan but around the world.
She hopes viewers will pay attention to Yumeka’s emotions and understand the character beyond her negative feelings.
Her central message is that Yumeka’s experiences may resonate with viewers who have experienced setbacks themselves.
Rather than simply viewing Yumeka as someone who is frustrated with Chinatsu, viewers may be able to see her as a young person struggling with disappointment and comparison.
That perspective could make Yumeka one of the more emotionally relatable characters in Season 2.
The release of the Episode 26 advance stills and Yoshino Aoyama’s interview gives fans a closer look at what to expect from Blue Box Season 2.
The season begins with “Déjà Vu,” following Taiki and Chinatsu as they finally go on their long-awaited date. Their time together starts positively, but the unexpected appearance of basketball senior Kazuma Matsuoka creates a series of complications. As evening approaches, Taiki gathers the courage to confess his feelings to Chinatsu.
At the same time, Season 2 introduces Yumeka Kido, voiced by Yoshino Aoyama. Yumeka’s complicated history with Chinatsu and her painful relationship with basketball add a new emotional layer to the series.
Aoyama’s comments make it clear that Yumeka is not simply designed to create conflict. She is a character dealing with admiration, frustration, regret, and the pain of comparing herself with someone she once looked up to.
Her reunion with Chinatsu is one of the scenes Aoyama specifically highlighted, making it an important moment to watch when Season 2 begins.
Meanwhile, Taiki and Chinatsu’s relationship continues moving forward, with Episode 26 setting up another major emotional turning point.
Blue Box Season 2 will premiere on October 4, 2026, at 4:30 p.m. in Japan, airing every Sunday on the TBS network of 28 stations.
With new character drama, continuing sports ambitions, evolving relationships, and music from aiko and elsewhere kikou, the second season is set to expand the world of Blue Box while maintaining the series’ focus on the small but meaningful emotions of adolescence.
For longtime fans, Yumeka’s arrival promises a new perspective on Chinatsu’s past. For anime-only viewers, her story offers another example of how Blue Box turns sports, friendship, setbacks, and romance into an interconnected coming-of-age story.
