When the Agent of Spring, Hinagiku Kayo, is abducted, spring itself vanishes—plunging the world into unending winter. Refusing to give up, her devoted guard, Sakura Himedaka, searches for her for years. When Hinagiku suddenly returns, the two set out to restore the lost season, face the past that tore them apart, and reclaim the warmth they refuse to lose again.
Cast: Yuka Nukui, Yoshino Aoyama, Sumire Uesaka
Season 1
14 episodes
1. The Dance of SpringTen years ago, the balance of the seasons was broken. Now two girls set out to return spring to a frozen land.TV-14CC24minMar 29, 2026
2. Lingering SnowThe return of spring arouses painful memories and conflicting feelings in the Agent of Winter.TV-14CC24minApr 5, 2026
3. A GlimpseHinagiku and Sakura go to stay with the Agent of Summer and stumble into a sisterly feud.TV-14CC24minApr 12, 2026
4. Morning CalmInsurgents attack the Agent of Summer's home. The two Guards fight back.TV-14CC24minApr 19, 2026
5. Alone TogetherHinagiku and Sakura approach the Village of Spring, recalling painful memories.TV-14CC24minApr 26, 2026
6. A Place to Call HomeSakura reflects on her reunion with Hinagiku and the challenges they overcame to begin their journey.TV-14CC24minMay 3, 2026
7. DuskThe young Agent of Autumn and her Guard go about their lives in a high-tech fortress.TV-14CC24minMay 10, 2026
8. Spring RainIn the aftermath of the latest attack, Rosei relives his past with Hinagiku and their violent separation.TV-14CC24minMay 17, 2026
9. United FrontRosei resolves to take action and contacts Sakura, only to get the last response he expected.TV-14CC24minMay 24, 2026
10. AfterimageHinagiku recognizes Nadeshiko's kidnapper, and the newly united Agents finally identify their enemy.TV-14CC24minMay 31, 2026
11. ImpatienceHinagiku and Sakura are waiting to meet the Winter duo at the Agency when the building comes under attack.TV-14CC24minJun 7, 2026
12. AssaultIshihara holds Rosei and Itecho at gunpoint, revealing her own past and the full scope of Kasai's attack.TV-14CC24minJun 14, 2026
13. RecaptureRuri, Ayame, and Rindo face Kasai in a battle to get Nadeshiko back.TV-14CC24minJun 21, 2026
14. Spring Flowers Bloom in WinterHinagiku and Sakura confront Misuzu, and their pasts, head-on.TV-14CC24minJun 28, 2026
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When the Agent of Spring, Hinagiku Kayo, is abducted, spring itself vanishes—plunging the world into unending winter. Refusing to give up, her devoted guard, Sakura Himedaka, searches for her for years. When Hinagiku suddenly returns, the two set out to restore the lost season, face the past that tore them apart, and reclaim the warmth they refuse to lose again.
Creators and cast
- Studio
- WIT STUDIO, Aniplex, KADOKAWA
Maturity rating
TV-14Check the rating before watching with younger viewers.
Audio languages
Japanese
Where to watch
Stream
