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The Best Episodes of Blue Box

Every episode of Blue Box ranked from best to worst. Let's dive into the Best Episodes of Blue Box!

Binge this in 10h 0m•Peaking at 9.4/10

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

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Episode Rankings

  1. #1 Fan Favorite
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    Blue Box Season 1 Episode 24 - A Roller Coaster
    9.4/10(986 votes)

    #1 - A Roller Coaster

    S1:E24

    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.

    Director:Yoshiko Okuda
    Writer:Yuko Kakihara

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  2. Blue Box Season 1 Episode 14 - What's the Connection?
    9.2/10(1012 votes)

    #2 - What's the Connection?

    S1:E14

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

    Director:Hitomi Ezoe
    Writer:Yuko Kakihara

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  3. Blue Box Season 1 Episode 15 - August 26
    8.8/10(735 votes)

    #3 - August 26

    S1:E15

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

    Director:Takahiro Okawa
    Writer:Yuko Kakihara

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  4. Blue Box Season 1 Episode 18 - I Know
    8.8/10(634 votes)

    #4 - I Know

    S1:E18

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

    Director:Daisuke Tsukushi
    Writer:Yuko Kakihara

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  5. Blue Box Season 1 Episode 5 - Aquarium
    8.5/10(791 votes)

    #5 - Aquarium

    S1:E5

    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?

    Director:Keiko Oyamada
    Writer:Yuko Kakihara

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  6. Blue Box Season 1 Episode 6 - Wish Me Luck
    8.5/10(743 votes)

    #6 - Wish Me Luck

    S1:E6

    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.

    Director:Yasuo Tsuchiya
    Writer:Yuko Kakihara

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    The 20 WORST Episodes of Blue Box

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  7. Blue Box Season 1 Episode 12 - Girls...
    8.5/10(662 votes)

    #7 - Girls...

    S1:E12

    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.

    Director:Keiko Oyamada
    Writer:Yuko Kakihara

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  8. Blue Box Season 1 Episode 8 - Score!
    8.3/10(687 votes)

    #8 - Score!

    S1:E8

    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.

    Director:Shunji Yoshida
    Writer:Yuko Kakihara

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  9. Blue Box Season 1 Episode 9 - I'll Be Rooting for You
    8.3/10(697 votes)

    #9 - I'll Be Rooting for You

    S1:E9

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

    Director:Yuka Yamato
    Writer:Yuko Kakihara

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  10. Blue Box Season 1 Episode 3 - Chii
    8.2/10(788 votes)

    #10 - Chii

    S1:E3

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

    Director:Harume Kosaka
    Writer:Yuko Kakihara

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  11. Blue Box Season 1 Episode 13 - I Want a Back-and-Forth Rally
    8.2/10(629 votes)

    #11 - I Want a Back-and-Forth Rally

    S1:E13

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

    Director:Ryosuke Azuma
    Writer:Yuko Kakihara

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  12. Blue Box Season 1 Episode 20 - As One of Her Closest Friends
    8.2/10(550 votes)

    #12 - As One of Her Closest Friends

    S1:E20

    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.

    Director:Yuma Suzuki
    Writer:Yuko Kakihara

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  13. Blue Box Season 1 Episode 25 - Even So
    8.2/10(470 votes)

    #13 - Even So

    S1:E25

    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.

    Directors:Keiko Oyamada, Yasuo Tsuchiya
    Writer:Yuko Kakihara

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  14. Blue Box Season 1 Episode 1 - Chinatsu Senpai
    8.1/10(1053 votes)

    #14 - Chinatsu Senpai

    S1:E1

    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.

    Director:Keiko Oyamada
    Writer:Yuko Kakihara

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  15. Blue Box Season 1 Episode 4 - If He Wins
    8.1/10(748 votes)

    #15 - If He Wins

    S1:E4

    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.

    Director:Masato Kitagawa
    Writer:Yuko Kakihara

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  16. Blue Box Season 1 Episode 11 - Uncool!
    8.1/10(626 votes)

    #16 - Uncool!

    S1:E11

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

    Director:Mizuki Iwata
    Writer:Yuko Kakihara

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  17. Blue Box Season 1 Episode 16 - Unfair Woman
    8.1/10(557 votes)

    #17 - Unfair Woman

    S1:E16

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

    Director:Jiro Arimoto
    Writer:Yuko Kakihara

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  18. Blue Box Season 1 Episode 17 - Of Course I Want to See It
    8.1/10(544 votes)

    #18 - Of Course I Want to See It

    S1:E17

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

    Director:Yoshiko Okuda
    Writer:Yuko Kakihara

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  19. Blue Box Season 1 Episode 2 - You Have to Go to Nationals
    8.0/10(856 votes)

    #19 - You Have to Go to Nationals

    S1:E2

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

    Director:Hitomi Ezoe
    Writer:Yuko Kakihara

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  20. Blue Box Season 1 Episode 19 - I've Got Plans
    7.9/10(550 votes)

    #20 - I've Got Plans

    S1:E19

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

    Director:Keiko Oyamada
    Writer:Yuko Kakihara

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  21. Blue Box Season 1 Episode 21 - A Chance to Blossom
    7.9/10(505 votes)

    #21 - A Chance to Blossom

    S1:E21

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

    Director:Yuka Yamato
    Writer:Yuko Kakihara

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  22. Blue Box Season 1 Episode 22 - Inota!
    7.9/10(488 votes)

    #22 - Inota!

    S1:E22

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

    Director:Risa Suzuki
    Writer:Yuko Kakihara

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  23. Blue Box Season 1 Episode 23 - Spinning
    7.9/10(528 votes)

    #23 - Spinning

    S1:E23

    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.

    Director:Hitomi Ezoe
    Writer:Yuko Kakihara

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  24. Blue Box Season 1 Episode 7 - Can I Have One?
    7.8/10(692 votes)

    #24 - Can I Have One?

    S1:E7

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

    Director:Hitomi Ezoe
    Writer:Yuko Kakihara

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  25. Blue Box Season 1 Episode 10 - It's Not a Good Thing
    7.7/10(633 votes)

    #25 - It's Not a Good Thing

    S1:E10

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

    Director:Ryosuke Azuma
    Writer:Yuko Kakihara

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Best Episodes Summary

"A Roller Coaster" is the best rated episode of "Blue Box". It scored 9.4/10 based on 986 votes. Directed by Yoshiko Okuda and written by Yuko Kakihara, it aired on 3/20/2025. This episode scored 0.2 points higher than the second highest rated, "What's the Connection?".