Blue Box
Season 1
202437 episodes
Episode 1
Chinatsu Senpai
Oct 3, 202424m
TMDB rating 8.1TMDB
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.
Episode 2
You Have to Go to Nationals
Oct 10, 202424m
TMDB rating 7.7TMDB
Taiki's new housemate quickly makes herself at home. As they grow closer, his attempts to keep the situation a secret cause a misunderstanding.
Episode 3
Chii
Oct 17, 202424m
TMDB rating 7.3TMDB
Taiki overhears Haryu calling Chinatsu by a special nickname and gets flustered. Will it affect his upcoming match against the upperclassman?
Episode 4
If He Wins
Oct 24, 202424m
TMDB rating 7.0TMDB
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.
Episode 5
Aquarium
Oct 31, 202424m
TMDB rating 7.5TMDB
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?
Episode 6
Wish Me Luck
Nov 7, 202424m
TMDB rating 8.0TMDB
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.
Episode 7
Can I Have One?
Nov 14, 202424m
TMDB rating 7.8TMDB
Chinatsu overhears rival players speak poorly about her recent game. Later, Hina playfully steals a bite from Taiki — and Chinatsu notices from afar.
Episode 8
Score!
Nov 21, 202424m
TMDB rating 7.8TMDB
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.
Episode 9
I'll Be Rooting for You
Nov 28, 202424m
TMDB rating 7.8TMDB
Frustrated with his loss to Sajikawa High, Taiki overworks himself studying for midterms and falls ill, when Chinatsu suddenly appears in his room.
Episode 10
It's Not a Good Thing
Dec 5, 202424m
TMDB rating 6.5TMDB
After a sleepless night, Taiki asks Haryu for relationship advice. Later, Chinatsu realizes her recent behavior might hinder her dream and trouble others.
Episode 11
Uncool!
Dec 12, 202424m
TMDB rating 7.5TMDB
With the annual fireworks festival approaching, Hina musters the courage to invite Taiki, who's been avoiding Chinatsu since their awkward conversation.
Episode 12
Girls...
Dec 19, 202424m
TMDB rating 7.5TMDB
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.
Episode 13
I Want a Back-and-Forth Rally
Jan 2, 202524m
TMDB rating 7.2TMDB
Taiki worries about a potential misunderstanding after Chinatsu departs. At the badminton nationals, he learns more about Karen and Haryu's relationship.
Episode 14
What's the Connection?
Jan 9, 202524m
TMDB rating 7.0TMDB
While Chinatsu faces immense pressure at the nationals, Hina cheers up a worried Taiki with a game where the loser shares an embarrassing secret.
Episode 15
August 26
Jan 16, 202524m
TMDB rating 7.3TMDB
Despite it being her birthday, Chinatsu still seems a little down. Taiki takes her somewhere special — but the weather might have other plans.
Episode 16
Unfair Woman
Jan 23, 202524m
TMDB rating 7.3TMDB
As a new school term begins, the school buzzes with preparations for the upcoming festival. Chinatsu reflects on her restless feelings towards Taiki.
Episode 17
Of Course I Want to See It
Jan 30, 202524m
TMDB rating 7.0TMDB
Upon learning of an upcoming practice match with Sajikawa High, Taiki worries about facing Yusa gain. Chinatsu and Hina promise their support.
Episode 18
I Know
Feb 6, 202524m
TMDB rating 7.3TMDB
Sajikawa High arrives for the much-anticipated practice match. As Chinatsu watches from the sidelines, she thinks about how far Taiki has come.
Episode 19
I've Got Plans
Feb 13, 202524m
TMDB rating 7.3TMDB
Just before the school festival starts, Taiki goes for his usual morning jog and finds Chinatsu practicing nearby. She extends a surprising invitation.
Episode 20
As One of Her Closest Friends
Feb 20, 202524m
TMDB rating 7.3TMDB
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.
Episode 21
A Chance to Blossom
Feb 27, 202524m
TMDB rating 6.7TMDB
While rumors swirl around Taiki and Hina, Chinatsu seems unfazed. However, while spending the night at Karen's, the basketballer shares her true thoughts.
Episode 22
Inota!
Mar 6, 202524m
TMDB rating 7.0TMDB
After learning about Hina's unrequited feelings for Taiki, Ayame decides to help — and the perfect chance arises at the upcoming autumn training camp!
Episode 23
Spinning
Mar 13, 202524m
TMDB rating 7.0TMDB
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.
Episode 24
A Roller Coaster
Mar 20, 202524m
TMDB rating 7.3TMDB
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.
Episode 25
Even So
Mar 27, 202524m
TMDB rating 6.0TMDB
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.
Episode 26
Déjà Vu
Oct 4, 202624m
TMDB rating 7.5TMDB
Taiki and Chinatsu's outing kicks off at a sports shop. But when an uninvited guest crashes their cafe plans, Taiki hears a name he won't soon forget.
Episode 27
Admiration
Oct 11, 202624m
TMDB rating 6.5TMDB
After a tense run-in with Yumeka, Chinatsu opens up about their past on the train ride home. Taiki sets out to learn what tore apart their friendship.
Episode 28
Episode 28
Oct 18, 2026
Episode 29
Episode 29
Oct 25, 2026
Episode 30
Episode 30
Nov 1, 2026
Episode 31
Episode 31
Nov 8, 2026
Episode 32
Episode 32
Nov 15, 2026
Episode 33
Episode 33
Nov 22, 2026
Episode 34
Episode 34
Nov 29, 2026
Episode 35
Episode 35
Dec 6, 2026
Episode 36
Episode 36
Dec 13, 2026
Episode 37
Episode 37
Dec 20, 2026