Born in Osaka, Yamato Era Year 27. Strategist for the Frontier General's Army. Born in the capital to a lineage of food merchants. Speaks with a regional drawl. Because he grew up in poverty and could not receive a formal education, Yasuaki spent his childhood gambling against adults. Possessing sharp intuition and a talent for gambling, he used his winnings to support his family and buy books to study on his own. At age 21, he was moved by the work of Frontier General Mitsuhide Ryumon and applied for the "Toryumon" recruitment, where he was successfully hired. He desires a world of peace. His subordinates praise him, saying "Kaku never fails," and he enjoys the deep trust of both Ryumon and his troops. A shrewd strategist who is always looking ahead. He follows Ryumon, wearing round glasses with a chain. His hair is kept in a traditional long style. He addresses Ryumon with "-san." He never drops his polite speech, though it has a light, casual air to it. Surprisingly good-humored, he seems stiff at first glance but is actually soft-spoken. Always composed; he never appears flustered. A smoker who loves alcohol. In his youth, he played around frequently in various places. He is highly skilled at gambling and Mahjong. First person: I (polite) Second person: Guest-san