Seasons & episodes
S1 · E1An Awful Birthday 2025-01-10 · 24 min
July 1st, 2030. Manga editor Nishino Mizuho is having the worst 27th birthday ever. The manga she’s in charge of will be ending. However, when she sees a group of high school students having fun, she recalls her own adolescence. 10 years ago, during her second year of high school, Mizuho had four childhood friends who she grew up with in a residential neighborhood known as Koigahama Highlands…
S1 · E2I'll Be by Your Side 2025-01-17 · 24 min
Kizuki, who Mizuho saw as the crybaby little brother of the group, has lately been hitting on her. Since Mizuho believed her and Kizuki would be childhood friends forever, she is not sure how to approach this situation. He's on her mind to the point where she seems disoriented, and even says something that could potentially push Kizuki away.
S1 · E3Warmth 2025-01-24 · 24 min
Afraid of ruining their relationship, Mizuho tells herself not to fall for Kizuki. All the stress makes her ill, and her friends come to help.
S1 · E4Fireworks for the Future 2025-01-31 · 24 min
After spending the day at the aquarium, Kizuki asks Mizuho to cheer for him at his swim meet.
S1 · E5How to Be Together Forever 2025-02-07 · 24 min
As the fireworks are set off, Mizuho rushes to look for Kizuki. At the pool she runs into...?
S1 · E6I Don't Want to Be Just Friends 2025-02-14 · 24 min
Mizuho is reluctant to visit Kizuki's house for dinner while her dad is away.
S1 · E7Playing Nice 2025-02-21 · 24 min
Shugo's older brother, Togo, makes a surprise return to Koigahama Highlands.
S1 · E8The Shape of One-Sided Love 2025-02-28 · 24 min
Mizuho goes out with Shugo and Togo and strongly contemplates her feelings for Kizuki.
S1 · E9The Times I Spent With You 2025-03-07 · 24 min
Shin steps up as the student council president to ensure the Ao High Festival can be held.
S1 · E10Impulse 2025-03-14 · 24 min
The group goes on a camping trip! Airu tells Shin to be more selfish and he follows his suggestion.
S1 · E11Things That Change 2025-03-21 · 24 min
Mizuho starts becoming aware of Shin's intentions after he kissed her at the campsite.
S1 · E12Neverending Dream 2025-03-28 · 24 min
Shin and Kizuki compete over Mizuho. Meanwhile she finds out the results of the Newcomers' Manga Competition.
S1 · E13The Fireworks Ten Years Later 2026-01-09 · 24 min
The year is 2030. Mizuho hasn't heard from Kizuki in years. But at the fireworks festival, she bumps into...?
S1 · E14I Can't Give Up 2026-01-16 · 24 min
Mizuho reminisces the day her and Kizuki started dating. Shin approaches Mizuho with his feelings once more.
S1 · E15My True Self 2026-01-23 · 24 min
Airu takes a chance and confesses his feelings to Kizuki and his delinquent past is revealed.
S1 · E16A Miracle 2026-01-30 · 24 min
Mizuho believes her relationship with her friends could fall apart due to her dating Kizuki. However...
S1 · E17Feelings That Won't Go Away 2026-02-06 · 24 min
The seniors graduate and celebrate their last day at the pool, leaving behind heartfelt messages.
S1 · E18I've Liked You This Whole Time 2026-02-13 · 24 min
After a fight breaks out with Syugo and Kizuki, the friend group reunites for the first time in years.
S1 · E19I Don't Want to Have Any Regrets 2026-02-20 · 24 min
Kizuki finally brings to light an incident from the past that caused him to break things off with Mizuho.
S1 · E20I Don't Want to Lose You 2026-02-27 · 24 min
Airu reminisces the times he had feelings for Kizuki. Syugo's family restaurant faces uncertainty.
S1 · E21The Declaration 2026-03-06 · 24 min
Kizuki quits his job to pursue swimming. Meanwhile, Shin is out with a fever and Mizuho pays him a visit.
S1 · E22Something I've Been Meaning to Say 2026-03-13 · 24 min
Syugo and Mizuho spend their day together in Enoshima. Will Syugo finally confess or end with regret?
S1 · E23The Proposal 2026-03-20 · 24 min
Shin successfully performs surgery on Mizuho's dad. Can he finally prove to Mizuho that he can make her happy?
S1 · E24Anyway, I'm Falling in Love with You 2026-03-27 · 23 min
After Shin's proposal, Mizuho makes a decision and goes to the pool to have a heart to heart with Kizuki.