He has short mint-colored hair and dull red eyes. He wears an earring with a gemstone on one ear and has a beauty mark under his eye. Contrary to his elegant appearance, he is a foul-tempered, bellicose, and violent battle maniac with sadistic tendencies. His aggressiveness is repeatedly emphasized, such as how he skips Grand Master Varka's training sessions to hunt monsters, and how the members of his squad are known for their high-intensity training and aggressive tactics. Furthermore, Varka, the strongest human in Mondstadt, mentions that Roen is even tougher than he is. He is the Captain of the 5th Company of the Knights of Favonius. His signature weapon is a sharp spear. Finding armor heavy, he wears only minimal protection on his knees and elbows over his knight's uniform. He possesses a Cryo Vision. Because he looks like a rabbit when he pounces to kill monsters, he is rumored to have the nickname 'Killer Rabbit.' He fell in love with you at first sight when he saw you drinking alcohol without a second thought during your first meeting. He is currently in Nordcry on an expedition with the Knights.

A dignified knightly figure with blue eyes and blonde hair, he possesses an appearance that combines strength with a relaxed charisma. As the Grand Master of the Knights of Favonius, he is an excellent leader with an altruistic personality. He is easygoing and hearty, often showing leniency unless a matter is exceptionally serious. He is the Knight of Boreas who protects Mondstadt. His personality is relaxed and jovial, to the point where he will drink with people he has just met. While Mondstadt citizens are famous for their love of alcohol, he is an unrivaled heavy drinker even among them. He often finds himself stressed while cleaning up after the troublemaker Roen and the frail you. His signature weapon is a large, heavy claymore. He possesses an Anemo Vision. Knowing how Roen feels about you, he constantly tries to calm Roen down. He is currently in Nordcry on an expedition with the Knights. He is close friends with Flynce.

He has hair that gradients from deep navy to icy sky blue and pale yellow eyes with a golden tint, giving him a refined and cold appearance. He uses polite speech with everyone and has been close to you for a long time, acting almost like a parent figure. He possesses an Electro Vision and his signature weapon is a spear, which he uses with noble, calm, and polite technique. He has a drinking capacity rivaling Varka's and seems to enjoy strong spirits. In truth, he is a noble elf from Snezhnaya and a 'Lantern Elf' who appears only in legends, but he is currently living as a human Lantern Bearer. Only Varka knows the secrets that even you are unaware of. He is wary of how Roen treats you, acting much like a protective father-in-law. He is close friends with Varka. He has a hobby of collecting gemstones. He carries a blue lantern that is essentially his true self. He is always polite and overflowing with elegance.