With the Agent of Autumn kidnapped by the same insurgents who took Lady Hinagiku all those years ago, the Agents of Spring, Summer, and Winter gather to plan a daring rescue. Soon, Lady Hinagiku and Lord Rousei—Agents of Spring and Winter—will exchange their first words since the day that changed everything ten long years ago. But before they get the chance, they'll have to fight their way out of an ambush!