S1 E1 • Welcome to Torishirojima Island

A young boy with a wounded heart begins a new life on a quiet island. Source: Crunchyroll

Première diffusion : 7 avril 2025

S1 E2 • How to Spend Your Summer Vacation

The boy with the broken wings begins to settle into life on a tropical island. Source: Crunchyroll

Première diffusion : 14 avril 2025

S1 E3 • Pirate Ship and Girl

A mysterious chest is uncovered in the attic of a school. Source: Crunchyroll

Première diffusion : 21 avril 2025

S1 E4 • One Summer's Treasure

The crew goes searching for keys to a treasure chest. Source: Crunchyroll

Première diffusion : 28 avril 2025

S1 E5 • Higeneko Adventure

Hairi travels across the island in search of a pirate ship. Source: Crunchyroll

Première diffusion : 5 mai 2025

S1 E6 • Across the Seven Seas

Hairi learns the story of the Higenekos. Source: Crunchyroll

Première diffusion : 12 mai 2025

S1 E7 • The Lighthouse, the Song and the Girl

Hairi meets a girl sitting on a lighthouse. She is trying to find out what she wants to do. Source: Crunchyroll

Première diffusion : 19 mai 2025

S1 E8 • Looking for Things to Do

Tsumugi decides to make a balcony on the lighthouse out of the empty Paringles cans she's been collecting. Source: Crunchyroll

Première diffusion : 26 mai 2025

S1 E9 • Tsumugi and Tsumugi

Hairi and Shizuku look for Tsumugi, but Hairi ends up lost himself. Source: Crunchyroll

Première diffusion : 2 juin 2025

S1 E10 • A Lifetime's Worth of Summer Breaks

Hairi gives Tsumugi a summer break she'll never forget. Source: Crunchyroll

Première diffusion : 9 juin 2025

S1 E11 • The Summer Butterfly and the Night Girl

Hairi starts over at the island and meets a new girl. Source: Crunchyroll

Première diffusion : 16 juin 2025

S1 E12 • Priestess of Sorakado

Hairi ignores Ao's warning not to come back into the mountain at night. As it turns out, it was for good reason. Source: Crunchyroll

Première diffusion : 23 juin 2025

S1 E13 • A Pair of Butterflies

Ao continues her search for the butterfly she seeks. Source: Crunchyroll

Première diffusion : 30 juin 2025

S1 E14 • Dawn Memories

Ao and Ai have a lot of catching up to do. Source: Crunchyroll

Première diffusion : 7 juillet 2025

S1 E15 • The Girl Who Forgot Summer Vacation

Hairi meets a lone girl on the island. Source: Crunchyroll

Première diffusion : 14 juillet 2025

S1 E16 • Not a Date

Hairi visits the main island and talks a little about his past. Source: Crunchyroll

Première diffusion : 21 juillet 2025

S1 E17 • Natsudori Ritual

Hairi and Shiroha need to make arrangements to prepare for the upcoming ritual. Shiroha's visions become clearer. Source: Crunchyroll

Première diffusion : 28 juillet 2025

S1 E18 • One More Summer Vacation

Hairi tries to grant Umi's wish. Source: Crunchyroll

Première diffusion : 4 août 2025

S1 E19 • Magic Picture Diary

Umi's true hopes for summer vacation are revealed. Source: Crunchyroll

Première diffusion : 11 août 2025

S1 E20 • Marriage

The day of the ritual draws near. Source: Crunchyroll

Première diffusion : 18 août 2025

S1 E21 • Footprints Between the Waves

As summer draws to a close, Hairi begins to forget. Source: Crunchyroll

Première diffusion : 25 août 2025

S1 E22 • Towards That Summer

Time moves on after summer ends. Source: Crunchyroll

Première diffusion : 1 septembre 2025

S1 E23 • Nanami

Nanami wakes up on the island with no memory of how she got there. Source: Crunchyroll

Première diffusion : 8 septembre 2025

S1 E24 • Where the Sunshine Is

Nanami is invited to make lanterns with Shiroha and her classmates for the Natsudori ritual. Source: Crunchyroll

Première diffusion : 15 septembre 2025

S1 E25 • Memories of the Future

Nanami's true identity is revealed. Source: Crunchyroll

Première diffusion : 22 septembre 2025

S1 E26 • Pockets Stuffed Full

Umi's story comes to an end. Source: Crunchyroll

Première diffusion : 29 septembre 2025