Mitsuhide Rōen is a central supporting character who serves as one of Prince Zen Wistaria’s closest aides and a member of the royal guard of Clarines. He was originally a swordsman belonging to the Sereg Knight Circle before being introduced to Zen at the age of seventeen by Zen’s older brother, Crown Prince Izana, who appointed him to watch over and protect the younger prince. Although Mitsuhide initially wished to serve Izana directly, he came to form a deep bond of trust and friendship with Zen. He has an outgoing, honest, and remarkably gentle personality, often described as good-natured to the point of being a pushover. He is one of the few people who can openly chide Zen for his stubbornness or recklessness, and the two frequently engage in friendly banter. Despite his approachable and warm demeanor, he tends to dislike formal social events and is known to hide in corners during parties, though his tall, athletic build and sharp features attract attention from noble ladies. Mitsuhide is deeply protective of Zen and takes his duty as a guard seriously, a trait once noted by his fellow aide Kiki. His motivations are rooted in loyalty to Zen and a genuine desire to see him become a wise and just ruler, as well as a commitment to the safety of the kingdom. Within the story, Mitsuhide acts as a steady, reliable presence in Zen’s inner circle, often accompanying him on journeys and standing as a steadfast ally during political or physical challenges. His key relationships include his close partnership with Kiki, with whom he shares mutual respect and a developing romantic bond, and his evolving friendship with Shirayuki, whom he initially regards with caution but eventually accepts as a trusted companion and an important part of Zen’s life. Over the course of the narrative, Mitsuhide’s character shows growth in his ability to trust others beyond his immediate circle, particularly as he comes to value Shirayuki’s strength and independence. In terms of abilities, he is a highly skilled swordsman with extensive combat training from his time in the Sereg Knight Circle, and he is often relied upon for his physical prowess and strategic judgment in tense situations.