8.2/10510 votes#1 - Chinatsu Senpai
Season 1 Episode 1 - Aired 10/3/2024
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
8.1/10375 votes#2 - You Have to Go to Nationals
Season 1 Episode 2 - Aired 10/10/2024
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
8.3/10308 votes#3 - Chii
Season 1 Episode 3 - Aired 10/17/2024
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
8.3/10266 votes#4 - If He Wins
Season 1 Episode 4 - Aired 10/24/2024
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
8.5/10253 votes#5 - Aquarium
Season 1 Episode 5 - Aired 10/31/2024
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
8.4/10205 votes#6 - Wish Me Luck
Season 1 Episode 6 - Aired 11/7/2024
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
7.7/10160 votes#7 - Can I Have One?
Season 1 Episode 7 - Aired 11/14/2024
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
NaN/100 votes#8 - Score!
Season 1 Episode 8 - Aired 11/21/2024
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: N/A
Writer: N/A
NaN/100 votes#9 - I'll Be Rooting for You
Season 1 Episode 9 - Aired 11/28/2024
Frustrated with his loss to Sajikawa High, Taiki overworks himself studying for midterms and falls ill, when Chinatsu suddenly appears in his room.
Director: N/A
Writer: N/A
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#10 - Episode 10
Season 1 Episode 10 - Aired 12/5/2024
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#11 - Episode 11
Season 1 Episode 11 - Aired 12/12/2024
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#12 - Episode 12
Season 1 Episode 12 - Aired 12/19/2024
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#13 - Episode 13
Season 1 Episode 13 - Aired 12/26/2024
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#14 - Episode 14
Season 1 Episode 14 - Aired 1/2/2025
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#15 - Episode 15
Season 1 Episode 15 - Aired 1/9/2025
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#16 - Episode 16
Season 1 Episode 16 - Aired 1/16/2025
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#17 - Episode 17
Season 1 Episode 17 - Aired 1/23/2025
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#18 - Episode 18
Season 1 Episode 18 - Aired 1/30/2025
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#19 - Episode 19
Season 1 Episode 19 - Aired 2/6/2025
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#20 - Episode 20
Season 1 Episode 20 - Aired 2/13/2025
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#21 - Episode 21
Season 1 Episode 21 - Aired 2/20/2025
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#22 - Episode 22
Season 1 Episode 22 - Aired 2/27/2025
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#23 - Episode 23
Season 1 Episode 23 - Aired 3/6/2025
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#24 - Episode 24
Season 1 Episode 24 - Aired 3/13/2025
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#25 - Episode 25
Season 1 Episode 25 - Aired 3/20/2025
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The Best Episodes of Blue Box Season 1
Every episode of Blue Box Season 1 ranked from best to worst. Discover the Best Episodes of Blue Box Season 1!
Badminton player Taiki has always admired basketball star Chinatsu from afar. But one spring day, a surprising turn brings them unexpectedly close.
Genres:AnimationComedyDrama
Season 1 Ratings Summary
"Chinatsu Senpai" is the best rated episode of "Blue Box" season 1. It scored 8.2/10 based on 510 votes. Directed by Keiko Oyamada and written by Yuko Kakihara, it aired on 10/3/2024. This episode is rated 0.1 points higher than the second-best, "You Have to Go to Nationals".