Welcome to Viiibz

Find what to watch next — and never lose one a friend told you about.

Find something worth watching tonight, keep your own catalog of everything you watch, and never lose a movie a friend tells you about.

Free to use · No ads · Private by default · No monthly fee, ever

Get started — it’s free
TV series

Blue Box

2024–· 1 season· 25 min episodesTV-PG★ 7.9Returning series

On MBS · TBS · CBC — From Telecom Animation Film · UNLIMITED PRODUCE by TMS

📺 Next episode: S1E30 “Episode 30” · Nov 8, 2026 (in 2 days)
🔔 Notify me about new seasons

Do these sports-crossed lovers have a chance?

Create a free account to save & share

Create a free account to see where Blue Box is streaming, with prices and your services first.

Where to watch

Not available to stream in US

Synopsis

Taiki Inomata loves badminton, but he has a long way to go before he can reach nationals. When Taiki sees upperclassman Chinatsu Kano practicing her heart out on the girls’ basketball team, he falls for her hard. After an unexpected turn of events brings the two closer together, sports might not be the first thing on their minds anymore!

Themes

adolescencefriendshipsportshigh schoolbasketballromanceslice of lifeschoolbased on mangaschool lifebadmintonshounenanimeschool club

Episodes

Create a free account to track the episodes you’ve watched.

  1. E1 Chinatsu SenpaiNext upOct 3, 2024 · 24 min · ★ 8.1
    Synopsis

    Despite a few heart-fluttering encounters, Taiki doubts his crush Chinatsu even knows his name. Later, shocking news forces him to make a bold move.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kaori Nazuka (Chinatsu's Mother (voice)), Kousuke Kiminarita (Club Member (voice)), Gentoku Kumazawa (Club Member (voice)), Sho Fujisawa (Club Member (voice)), Yuki Ishikari ((voice)), Naoko Komatsu ((voice))

  2. E2 You Have to Go to NationalsOct 10, 2024 · 24 min · ★ 7.7
    Synopsis

    Taiki's new housemate quickly makes herself at home. As they grow closer, his attempts to keep the situation a secret cause a misunderstanding.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Hiroki Maeda (Taiki's Father (voice)), Satoshi Miyazaki (Taiki's Grandfather (voice)), Kenta Sasa (Coach Yuasa (voice)), Kaori Nakamura (Rhythmic Gymnastics Club Advisor (voice)), Reo Osanai (Club Member (voice))

  3. E3 ChiiOct 17, 2024 · 24 min · ★ 7.3
    Synopsis

    Taiki overhears Haryu calling Chinatsu by a special nickname and gets flustered. Will it affect his upcoming match against the upperclassman?

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Anna Nagase (Nagisa Funami (voice)), Kenta Sasa (Coach Yuasa (voice)), Reo Osanai (Club Member (voice)), Katsunori Okai (Club Member (voice)), Satoshi Inomata (Club Member (voice))

  4. E4 If He WinsOct 24, 2024 · 24 min · ★ 7.0
    Synopsis

    A gym uniform mix-up leads to a heart-pounding exchange. Later, Haryu raises the stakes for Taiki’s match, while Kyo makes a secret request to Chinatsu.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kengo Kawanishi (Shoichiro Kishi (voice)), Anna Nagase (Nagisa Funami (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kousuke Kiminarita (Club Member (voice)), Gentoku Kumazawa (Club Member (voice))

  5. E5 AquariumOct 31, 2024 · 24 min · ★ 7.5
    Synopsis

    With both players going neck and neck on the court, will Taiki win his match against Kishi — and will Chinatsu invite him to the aquarium?

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kengo Kawanishi (Shoichiro Kishi (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kaori Nakamura (Rhythmic Gymnastics Club Advisor (voice)), Kousuke Kiminarita ((voice))

  6. E6 Wish Me LuckNov 7, 2024 · 24 min · ★ 8.0
    Synopsis

    On her way to return Chinatsu's mobile phone, Hina makes a shocking discovery. The gymnast faces mounting pressure while struggling with her new feelings.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Hiroki Maeda (Taiki's Father (voice)), Kaori Nakamura (Rhythmic Gymnastics Club Advisor (voice)), Maya Enoyoshi ((voice)), Yohei Matsuoka (Club Member (voice))

  7. E7 Can I Have One?Nov 14, 2024 · 24 min · ★ 7.8
    Synopsis

    Chinatsu overhears rival players speak poorly about her recent game. Later, Hina playfully steals a bite from Taiki — and Chinatsu notices from afar.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Satoshi Miyazaki (Taiki's Grandfather (voice)), Kenta Sasa (Coach Yuasa (voice))

  8. E8 Score!Nov 21, 2024 · 24 min · ★ 7.8
    Synopsis

    As Taiki strives to make it to the nationals, Chinatsu gives him a word of encouragement. Later, Haryu and Taiki face top players in the doubles match.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Yuki Ono (Shota Hyodo (voice)), Kensho Ono (Shuji Yusa (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Yuga Sato (Yuki Tateyama (voice)), Katsunori Okai ((voice))

  9. E9 I'll Be Rooting for YouNov 28, 2024 · 24 min · ★ 7.8
    Synopsis

    Frustrated with his loss to Sajikawa High, Taiki overworks himself studying for midterms and falls ill, when Chinatsu suddenly appears in his room.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kenta Sasa (Coach Yuasa (voice)), Kousuke Kiminarita (Club Member (voice)), Gentoku Kumazawa (Club Member (voice)), Katsunori Okai (Club Member (voice))

  10. E10 It's Not a Good ThingDec 5, 2024 · 24 min · ★ 6.5
    Synopsis

    After a sleepless night, Taiki asks Haryu for relationship advice. Later, Chinatsu realizes her recent behavior might hinder her dream and trouble others.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Hiroki Maeda (Taiki's Father (voice)), Satoshi Miyazaki (Taiki's Grandfather (voice))

  11. E11 Uncool!Dec 12, 2024 · 24 min · ★ 7.5
    Synopsis

    With the annual fireworks festival approaching, Hina musters the courage to invite Taiki, who's been avoiding Chinatsu since their awkward conversation.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Yuki Ono (Shota Hyodo (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kousuke Kiminarita ((voice)), Souhei Horikane ((voice))

  12. E12 Girls...Dec 19, 2024 · 24 min · ★ 7.5
    Synopsis

    Taiki attends the fireworks festival with Hina and is surprised by her new look and shyness. Later, he unexpectedly bumps into Chinatsu with a lost child.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Haruka Shiraishi (Karen Moriya (voice)), Yuki Ono (Shota Hyodo (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Yudai Mino (Club Member (voice))

  13. E13 I Want a Back-and-Forth RallyJan 2, 2025 · 24 min · ★ 7.2
    Synopsis

    Taiki worries about a potential misunderstanding after Chinatsu departs. At the badminton nationals, he learns more about Karen and Haryu's relationship.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Haruka Shiraishi (Karen Moriya (voice)), Yuki Ono (Shota Hyodo (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Katsunori Okai (Club Member (voice)), Yudai Mino (Club Member (voice))

  14. E14 What's the Connection?Jan 9, 2025 · 24 min · ★ 7.0
    Synopsis

    While Chinatsu faces immense pressure at the nationals, Hina cheers up a worried Taiki with a game where the loser shares an embarrassing secret.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Anna Nagase (Nagisa Funami (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kenta Sasa (Coach Yuasa (voice)), Satoshi Miyazaki (Girls' Basketball Coach (voice)), Sho Fujisawa (Club Member (voice)), Katsunori Okai (Club Member (voice))

  15. E15 August 26Jan 16, 2025 · 24 min · ★ 7.3
    Synopsis

    Despite it being her birthday, Chinatsu still seems a little down. Taiki takes her somewhere special — but the weather might have other plans.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Anna Nagase (Nagisa Funami (voice)), Kaori Nazuka (Chinatsu's Mother (voice)), Satoshi Miyazaki (Girls' Basketball Coach (voice)), Reo Osanai (Club Member (voice)), Nao Ojika (Club Member (voice)), Kenjirou Abekawa (Club Member (voice)), Toshiki Iwasawa (Club Member (voice))

  16. E16 Unfair WomanJan 23, 2025 · 24 min · ★ 7.3
    Synopsis

    As a new school term begins, the school buzzes with preparations for the upcoming festival. Chinatsu reflects on her restless feelings towards Taiki.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kaori Nazuka (Chinatsu's Mother (voice)), Kenta Sasa (Coach Yuasa (voice)), Katsunori Okai (Club Member (voice))

  17. E17 Of Course I Want to See ItJan 30, 2025 · 24 min · ★ 7.0
    Synopsis

    Upon learning of an upcoming practice match with Sajikawa High, Taiki worries about facing Yusa gain. Chinatsu and Hina promise their support.

    Guest stars: Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kensho Ono (Shuji Yusa (voice)), Anna Nagase (Nagisa Funami (voice)), Kenta Sasa (Coach Yuasa (voice)), Kaori Nakamura (Rhythmic Gymnastics Club Advisor (voice)), Sho Fujisawa (Club Member (voice)), Yuki Ishikari ((voice))

  18. E18 I KnowFeb 6, 2025 · 24 min · ★ 7.3
    Synopsis

    Sajikawa High arrives for the much-anticipated practice match. As Chinatsu watches from the sidelines, she thinks about how far Taiki has come.

    Guest stars: Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kensho Ono (Shuji Yusa (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Gen Sato (Yakushiji (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Hiroki Maeda (Taiki's Father (voice))

  19. E19 I've Got PlansFeb 13, 2025 · 24 min · ★ 7.3
    Synopsis

    Just before the school festival starts, Taiki goes for his usual morning jog and finds Chinatsu practicing nearby. She extends a surprising invitation.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Haruka Shiraishi (Karen Moriya (voice)), Kengo Kawanishi (Shoichiro Kishi (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice))

  20. E20 As One of Her Closest FriendsFeb 20, 2025 · 24 min · ★ 7.3
    Synopsis

    After a blissful time with Chinatsu, Nishida's ominous fortune comes true! His classmate playing the prince can't perform, so Taiki must take on the role.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Haruka Shiraishi (Karen Moriya (voice)), Kengo Kawanishi (Shoichiro Kishi (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Yuki Ito ((voice))

  21. E21 A Chance to BlossomFeb 27, 2025 · 24 min · ★ 6.7
    Synopsis

    While rumors swirl around Taiki and Hina, Chinatsu seems unfazed. However, while spending the night at Karen's, the basketballer shares her true thoughts.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Haruka Shiraishi (Karen Moriya (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice))

  22. E22 Inota!Mar 6, 2025 · 24 min · ★ 7.0
    Synopsis

    After learning about Hina's unrequited feelings for Taiki, Ayame decides to help — and the perfect chance arises at the upcoming autumn training camp!

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Haruka Shiraishi (Karen Moriya (voice)), Yuki Kaji (Kazuma Matsuoka (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice))

  23. E23 SpinningMar 13, 2025 · 24 min · ★ 7.0
    Synopsis

    An exciting card game with friends leaves Taiki's head spinning. He mulls over his feelings for Chinatsu and Hina as the training camp continues.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Yuki Kaji (Kazuma Matsuoka (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Yuki Ishikari ((voice))

  24. E24 A Roller CoasterMar 20, 2025 · 24 min · ★ 7.3
    Synopsis

    Hina experiences a roller coaster of emotions over her affection for Taiki and, thanks to Ayame, gets a chance to be alone with him on the last night.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Kana Ichinose (Ayame Moriya (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Miria Takagishi ((voice)), Naoya Nakagome ((voice)), Yurina Amami ((voice)), Mizuki Ishii ((voice))

  25. E25 Even SoMar 27, 2025 · 24 min · ★ 6.0
    Synopsis

    Ayame faces the consequences of her meddling and tries all sorts of ways to console Hina. Meanwhile, Taiki strengthens his resolve and asks Chinatsu out.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Kenta Sasa (Coach Yuasa (voice)), Katsunori Okai (Club Member (voice)), Kyouhei Natsume (Club Member (voice))

  26. E26 Déjà VuOct 4, 2026 · 24 min
    Synopsis

    Taiki and Chinatsu's outing kicks off at a sports shop. But when an uninvited guest crashes their cafe plans, Taiki hears a name he won't soon forget.

    Guest stars: Yuki Kaji (Kazuma Matsuoka (voice)), Anna Nagase (Nagisa Funami (voice)), Yoshino Aoyama (Yumeka Kido (voice)), Yousuke Omomo (Yokomura (voice)), Tatsuma Fukumoto (Clerk (voice)), Haruno Inoue (Girls' Basketball Club Member (voice)), Kureha Shinomiya (Girls' Basketball Club Member (voice))

  27. E27 AdmirationOct 11, 2026 · 24 min
    Synopsis

    After a tense run-in with Yumeka, Chinatsu opens up about their past on the train ride home. Taiki sets out to learn what tore apart their friendship.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Kaori Nazuka (Chinatsu's Mother (voice)), Yoshino Aoyama (Yumeka Kido (voice))

  28. E28 They're One and the SameOct 18, 2026 · 24 min
    Synopsis

    Yumeka snaps at Taiki for overstepping while a teammate's harsh words stir up old memories for Chinatsu. Later, a chance encounter catches her off guard.

    Guest stars: Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Yuki Kaji (Kazuma Matsuoka (voice)), Anna Nagase (Nagisa Funami (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Ryoka Yuzuki (Taiki's Mother (voice)), Mari Kawano (Kikuchi (voice)), Yoshino Aoyama (Yumeka Kido (voice))

  29. E29 Love Is the Most Powerful FeelingOct 25, 2026 · 24 min
    Synopsis

    Chinatsu walks away, leaving Yumeka to confront her true feelings. Middle school memories come flooding back, revealing how her love for basketball faded.

    Guest stars: Chiaki Kobayashi (Kyo Kasahara (voice)), Yuma Uchida (Kengo Haryu (voice)), Shogo Sakata (Ryosuke Nishida (voice)), Kana Ichinose (Ayame Moriya (voice)), Yuki Kaji (Kazuma Matsuoka (voice)), Asaki Yuikawa (Niina Shimazaki (voice)), Mari Kawano (Kikuchi (voice)), Yoshino Aoyama (Yumeka Kido (voice))

  30. E30 Episode 30Airs Nov 8, 2026
  31. E31 Episode 31Airs Nov 15, 2026
  32. E32 Episode 32Airs Nov 22, 2026
  33. E33 Episode 33Airs Nov 29, 2026
  34. E34 Episode 34Airs Dec 6, 2026
  35. E35 Episode 35Airs Dec 13, 2026
  36. E36 Episode 36Airs Dec 20, 2026
  37. E37 Episode 37Airs Dec 27, 2026

Cast & crew

Shoya ChibaTaiki Inomata (voice)Reina UedaChinatsu Kano (voice)Akari KitoHina Chono (voice)

Videos

Trailers

Images · 14

Blue Box, image 1
Blue Box, image 2
Blue Box, image 3
Blue Box, image 4
Blue Box, image 5
Blue Box, image 6
Blue Box, image 7
Blue Box, image 8
Blue Box, image 9
Blue Box, image 10
Blue Box, image 11
Blue Box, image 12
Blue Box, image 13
Blue Box, image 14

Similar shows

From Me to You: Kimi ni Todoke2009TV
The Ramparts of Ice2026TV
Honey Lemon Soda2025TV
In the Clear Moonlit Dusk2026TV
The Fragrant Flower Blooms with Dignity2025TV