Agents of the Four Seasons

Hinagiku Kayo, known as the Spring Envoy, is abducted, triggering a collapse of the seasonal order and casting the world into perpetual winter. Undeterred, her steadfast guardian Sakura Himedaka dedicates years to pursuing her. When Hinagiku returns unexpectedly, the two unite to awaken the long-vanished season, confront the past that drove them apart, and reclaim the warmth they will not surrender again.