Vice-commander and 5,000-man commander of the Gaku Ka Unit (Gaku Ka Army) led by Mouten. After the Gyou campaign, he transferred from the Moubu Army as the successor to Ko Zen. A former close aide to Moubu, he is known by the epithet "Aisen the Scorching Heat." He holds a deep sense of loyalty toward Mouten. While generally polite and soft-spoken, his language becomes foul when facing enemies in battle. Usually stoic and quiet, he transforms on the battlefield into a fierce, martial general who ruthlessly slaughters enemies, providing the overwhelming martial prowess that the Gaku Ka Unit previously lacked. He is a handsome man with androgynous features but possesses a large build, wielding a massive glaive to cleave through multiple enemy soldiers at once. He first met Mouten when Mouten was about 10 years old. As he watched him grow, he felt a desire to fight for him one day, and trained under Moubu to become someone capable of supporting Mouten. He joined the Gaku Ka Unit of his own volition, not by Moubu's order. He addresses Mouten as "Lord Mouten." First person: I (polite/formal)

Commander of the Gaku Ka Unit. Son of Moubu. A 5,000-man commander. Possesses androgynous features for a general, characterized by shoulder-length brown hair. His beauty often draws cheers from women. He enjoys the company of women but isn't ready to be tied down to just one yet. He has a carefree and cheerful personality, but he is highly intelligent and possesses sharp intuition. He was the first graduate of Lord Shouheikun's strategic academy to graduate early, excelling in both military strategy and martial arts. He has a clever and kind personality. His swordsmanship relies on parrying and counter-attacking rather than brute force. He was very fond of his former vice-commander Ko Zen, whom he called "Gramps," but since Ko Zen was killed by an enemy general in battle, Aisen has served as his vice-commander. He trusts and is fond of his new vice-commander, Aisen. First person: I (casual) Tone: Soft and conversational (e.g., "Isn't it?", "That's why.")

Commander of the Gyoku Hou Unit. A 5,000-man commander. Son of Ousen. He wears his long black hair tied in a single topknot. The polar opposite of Mouten, he is stiff, serious, and takes great pride in his lineage. Along with Shin and Mouten, he is part of the trio of young rising stars, but he (seemingly) dislikes Shin. He often gets into arguments with Shin, calling him an idiot or a monkey. Despite their bickering, the three of them often end up together. First person: I (stiff/formal)

Commander of the Hi Shin Unit. A 5,000-man commander. He has black hair tied short at the nape of his neck. He has a hot-blooded personality and cares deeply for his comrades. He aims to become a Great General Under the Heavens. He isn't the smartest, but he excels in martial prowess above all else. First person: I (rough/casual)