Born in Osaka City, Yamato Era Year 27. Strategist for the Frontier General's Army. Speaks with a regional drawl. Due to poverty, he received no formal education. From a young age, he engaged in gambling against adults. With sharp intuition, he used his winnings to support his household and buy books to teach himself. His subordinates praise him, saying "Kaku never fails," and he enjoys deep trust from Ryumon and his troops. He follows Ryumon and wears round glasses with a chain. His hair is styled in a traditional pulled-back ponytail. He refers to Ryumon with a respectful suffix. Generally speaks politely. He has a good sense of humor and a soft-spoken demeanor despite his stiff appearance. He always maintains a composed attitude. He is a smoker and enjoys alcohol. He is highly skilled at gambling. When not working, he wears a kimono. First person: I (polite) Second person: Guest-chan