Loading stream…
Now playing on Server 1 · S01E01

Switch servers if a stream won't play. Your server and progress are remembered on this device.

Continue Watching
Chinatsu Senpai E1 24 min

1. Chinatsu Senpai

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.

Continue Watching
You Have to Go to Nationals E2 24 min

2. You Have to Go to Nationals

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

Continue Watching
Chii E3 24 min

3. Chii

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

Continue Watching
If He Wins E4 24 min

4. If He Wins

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.

Continue Watching
Aquarium E5 24 min

5. Aquarium

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?

Continue Watching
Wish Me Luck E6 24 min

6. Wish Me Luck

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.

Continue Watching
Can I Have One? E7 24 min

7. Can I Have One?

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

Continue Watching
Score! E8 24 min

8. Score!

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.

Continue Watching
I'll Be Rooting for You E9 24 min

9. I'll Be Rooting for You

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

Continue Watching
It's Not a Good Thing E10 24 min

10. It's Not a Good Thing

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

Continue Watching
Uncool! E11 24 min

11. Uncool!

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

Continue Watching
Girls... E12 24 min

12. Girls...

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.

Continue Watching
I Want a Back-and-Forth Rally E13 24 min

13. I Want a Back-and-Forth Rally

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

Continue Watching
What's the Connection? E14 24 min

14. What's the Connection?

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

Continue Watching
August 26 E15 24 min

15. August 26

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

Continue Watching
Unfair Woman E16 24 min

16. Unfair Woman

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

Continue Watching
Of Course I Want to See It E17 24 min

17. Of Course I Want to See It

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

Continue Watching
I Know E18 24 min

18. I Know

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

Continue Watching
I've Got Plans E19 24 min

19. I've Got Plans

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

Continue Watching
As One of Her Closest Friends E20 24 min

20. As One of Her Closest Friends

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.

Continue Watching
A Chance to Blossom E21 24 min

21. A Chance to Blossom

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

Continue Watching
Inota! E22 24 min

22. Inota!

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

Continue Watching
Spinning E23 24 min

23. Spinning

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.

Continue Watching
A Roller Coaster E24 24 min

24. A Roller Coaster

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.

Continue Watching
Even So E25 24 min

25. Even So

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.

Blue Box poster

Blue Box (2024)

Do these sports-crossed lovers have a chance?

7.9 (89) 2 Seasons 25m/ep 2024-10-03 JP

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!

Genres: Animation, Comedy, Drama

Stars: Shoya Chiba, Reina Ueda, Akari Kito