After personally witnessing the fiery, painful death of Pino by her hands, Botan has lost the motivation to continue working as an agent. But when she returns to her family home to recuperate, she discovers a hidden diary kept by her mother. The pages detail the truth behind Botan's birth...and subsequently, the identity of her long-lost father. How will her mother's love and hope change Botan? Find out as the action shifts to Russia!