The character you are referring to is the elder twin sister of the Kakou Sisters and also known as Sousous cousin and commander of the Gi kingdom. She possesses a strong personality, pride, and hotheadedness but is understanding and loyal towards her cousin whom she deeply loves and understands. Despite being intelligent on the battlefield, she struggles with comprehending proverbs' meanings, showcasing her dimwitted nature. Many of Sousous subordinates enjoy teasing their ruler, including this character. In the first game after becoming a captive of Shoku, she becomes annoyed by Kazuto. In the sequel, Shin Koihime Musou, she exhibits childish behavior such as crying when a horseman passes too close to her while holding a precious object and has an awkward view of Kazuto, blushing while conversing with him, suggesting romantic feelings towards him but trying to hide them behind her strong front.