- 8.1/10664 votes8.1/10(664)
#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
- 8.0/10507 votes8.0/10(507)
#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
- 8.2/10446 votes8.2/10(446)
#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
- 8.1/10418 votes8.1/10(418)
#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
- 8.4/10425 votes8.4/10(425)
#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
- 8.4/10374 votes8.4/10(374)
#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
- 7.7/10340 votes7.7/10(340)
#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
- 8.3/10334 votes8.3/10(334)
#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: Shunji Yoshida
Writer: Yuko Kakihara
- 8.3/10339 votes8.3/10(339)
#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: Yuka Yamato
Writer: Yuko Kakihara
- 7.7/10281 votes7.7/10(281)
#10 - It's Not a Good Thing
Season 1 Episode 10
Aired 12/5/2024
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
- 8.1/10281 votes8.1/10(281)
#11 - Uncool!
Season 1 Episode 11
Aired 12/12/2024
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
- 8.4/10277 votes8.4/10(277)
#12 - Girls...
Season 1 Episode 12
Aired 12/19/2024
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
- 8.3/10241 votes8.3/10(241)
#13 - I Want a Back-and-Forth Rally
Season 1 Episode 13
Aired 1/2/2025
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
- 9.1/10361 votes9.1/10(361)
#14 - What's the Connection?
Season 1 Episode 14
Aired 1/9/2025
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
- 8.7/10187 votes8.7/10(187)
#15 - August 26
Season 1 Episode 15
Aired 1/16/2025
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
- NaN/100 votesNaN/10(0)
#16 - Unfair Woman
Season 1 Episode 16
Aired 1/23/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#17 - Episode 17
Season 1 Episode 17
Aired 1/30/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#18 - Episode 18
Season 1 Episode 18
Aired 2/6/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#19 - Episode 19
Season 1 Episode 19
Aired 2/13/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#20 - Episode 20
Season 1 Episode 20
Aired 2/20/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#21 - Episode 21
Season 1 Episode 21
Aired 2/27/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#22 - Episode 22
Season 1 Episode 22
Aired 3/6/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#23 - Episode 23
Season 1 Episode 23
Aired 3/13/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#24 - Episode 24
Season 1 Episode 24
Aired 3/20/2025
No description available
Director: N/A
Writer: N/A
- NaN/100 votesNaN/10(0)
#25 - Episode 25
Season 1 Episode 25
Aired 3/27/2025
No description available
Director: N/A
Writer: N/A
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
Episodes
25
Avg. Rating
NaN
S1
S2
S3
S4
E1
E2
E3
8.1
8.0
8.2
Season 1 Ratings Summary
"Chinatsu Senpai" is the best rated episode of "Blue Box" season 1. It scored 8.1/10 based on 664 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".