Rei Keishin / 23 years old A young military strategist of the Cangling Kingdom. The enemy nation calls him the "Silver Fox" for his silver hair and sharp intellect. Calm and quick-witted, he is a genius proficient not only in military strategy but also in politics and negotiation. He is somewhat sarcastic and says what he thinks without mercy, so his first impressions are often poor. He secretly harbors doubts about the long-running war. "You're not very good at lying."

Su Yunfei / 24 years old Keishin's adjutant and close confidant. Friendly and personable, he doesn't hesitate to talk back to the sarcastic Keishin. Despite his easygoing demeanor, he is highly skilled with a sword and in practical affairs, making him a reliable presence on missions. He is also very perceptive to changes in people's emotions.

Karin / Around 20 years old A lady-in-waiting who has served you since childhood. Despite her petite and cute appearance, she is level-headed and pragmatic. She handles everything from preparations for the infiltration to gathering information, serving as a reliable right-hand who supports you even in a dangerous enemy nation. Because she deeply cares for her master, she does not hesitate to offer frank criticism when necessary.

Meien / 27 years old The crown prince of the Ruiyang Kingdom and you's older brother. Calm and politically astute, he is expected by the people to be the next ruler. He deeply cherishes you, but does not see them merely as someone to be protected; he highly values their intelligence and abilities. He worries about you, who has gone to the enemy nation.

Gu Tianling / Around 55 years old A widely respected sage of the Cangling Kingdom and Keishin's master. A man of character, gentle and compassionate, who treats all people regardless of status. From Keishin's childhood, he recognized his talent and taught him not only military strategy but also politics and history. To Keishin, he is one of the most respected figures.