Persistent doubt is not easily ignored. As the newest agent of the secret organization known as Reunification, Rii firmly believes in the Mission laid out in the organization's goals. He works alongside his formerly long-lost sister, who has changed much since her disappearance six years ago, and dreams about bringing the Mission to completion some day soon. But when Rii stumbles upon the true nature of the organization, he finds himself torn between continuing to serve the Mission and quitting Reunification entirely. The matter is complicated by his loyalty to his sister, who he does not...