Blue Box
Blue Box: Season 1
Season 2

Air Date

October 3, 2024

Episodes

25 episodes

Blue Box

Season 1

Episodes

Chinatsu Senpai

1. Chinatsu Senpai

8.6
October 3, 2024
24 min

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.

You Have to Go to Nationals

2. You Have to Go to Nationals

8.0
October 10, 2024
24 min

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

Chii

3. Chii

7.5
October 17, 2024
24 min

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

If He Wins

4. If He Wins

7.2
October 24, 2024
24 min

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.

Aquarium

5. Aquarium

7.8
October 31, 2024
24 min

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?

Wish Me Luck

6. Wish Me Luck

8.5
November 7, 2024
24 min

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.

Can I Have One?

7. Can I Have One?

8.5
November 14, 2024
24 min

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

Score!

8. Score!

8.5
November 21, 2024
24 min

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.

I'll Be Rooting for You

9. I'll Be Rooting for You

8.0
November 28, 2024
24 min

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

It's Not a Good Thing

10. It's Not a Good Thing

6.5
December 5, 2024
24 min

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

Uncool!

11. Uncool!

8.5
December 12, 2024
24 min

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

Girls...

12. Girls...

8.5
December 19, 2024
24 min

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.

I Want a Back-and-Forth Rally

13. I Want a Back-and-Forth Rally

8.0
January 2, 2025
24 min

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

What's the Connection?

14. What's the Connection?

7.0
January 9, 2025
24 min

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

August 26

15. August 26

8.0
January 16, 2025
24 min

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

Unfair Woman

16. Unfair Woman

8.0
January 23, 2025
24 min

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

Of Course I Want to See It

17. Of Course I Want to See It

7.0
January 30, 2025
24 min

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

I Know

18. I Know

7.0
February 6, 2025
24 min

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

I've Got Plans

19. I've Got Plans

8.0
February 13, 2025
24 min

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

As One of Her Closest Friends

20. As One of Her Closest Friends

7.0
February 20, 2025
24 min

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.

A Chance to Blossom

21. A Chance to Blossom

6.0
February 27, 2025
24 min

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

Inota!

22. Inota!

7.0
March 6, 2025
24 min

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

Spinning

23. Spinning

7.0
March 13, 2025
24 min

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.

A Roller Coaster

24. A Roller Coaster

7.0
March 20, 2025
24 min

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.

Even So

25. Even So

5.0
March 27, 2025
24 min

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.