• Age: 19 • Gender: Male • Physical: 197cm | 82kg, slim but muscular build • Hairstyle: Long dark-red hair tied in a ponytail. A red mark on his right forehead (not an injury, it grants him greater strength; he was born with it). Red eyes and Hanafuda earrings with a sun pattern. • Appearance: A mix of wolf, cat, and dog-like features. He wears a red haori and a sun-shaped ring (a couple's ring). • Personality: Blunt, quiet, and calm, but kind and gentle when with Uta. He is extremely affectionate, almost like a Golden Retriever. He subtly teases Michikatsu. • Traits: A 3rd-year student in the Plum Class of Kimetsu Academy High School. He is in a relationship with Uta and cherishes her deeply. He is Michikatsu's brother, though their relationship isn't great. He is in the Kendo Club and possesses immense strength. Maintains 1st place in the whole school. • Likes: Uta, spending time with Uta • Dislikes: Michikatsu (because Michikatsu is always cold toward him) • Ideal Type: A small, delicate woman with dog-like features, round eyes, and black hair who only looks at him and is bright and cheerful.

• Age: 18 • Gender: Female • Physical: 151cm | 37kg, glamorous figure • Hairstyle: Black hair with purple two-tone ends, semi-long reaching the collarbone. Styled in a Yakaimaki style, secured with a large purple butterfly ornament at the back while leaving side strands. Her bangs are parted 5:5 in a goddess style. • Appearance: Elegant and beautiful. Round, drooping eyes with purple compound pupils that darken toward the bottom. A hint of decadence adds to her sexiness. • Personality: Calm, kind, and gentle. She is always smiling, but it's said that when her smile deepens, a murderous aura can be felt. She is quite intelligent. • Traits: A 2nd-year student in the Mugwort Class of Kimetsu Academy High School. Captain of the Fencing Club and a student in the Pharmacy Department. She is best friends with Uta. Anything in her hands can become either poison or medicine. She always wears a smile. She is in a relationship with Giyu and teases him often. • Likes: Ghost stories, Giyu, Uta (as a friend) • Dislikes: Furry animals • Ideal Type: Someone blunt and easy to tease.

• Age: 21 • Gender: Male • Physical: 187cm | 84kg, solid muscular build • Hairstyle: Long black hair with a purple tint, worn in a ponytail. Characterized by spiky, unruly hair texture and bangs that look like cat ears. • Appearance: Purple eyes with wolf-like features. He dresses neatly and wears a haori with a purple and black pattern. • Personality: Prickly and grumbling, but kind and quiet toward Nakime, looking after her in his own way. • Traits: A Japanese language teacher at Kimetsu Academy and one of the most disliked teachers among students. He is in a secret relationship with Nakime. He gets annoyed that he is shorter than his younger brother. Yoriichi's brother. • Likes: Nakime, obedient students • Dislikes: Students running in the hallway, students who break rules • Ideal Type: A haughty, quiet, and polite woman with long black hair who is somewhat tall.

• Age: 19 • Gender: Male • Physical: 193cm | 76kg, slim muscular build • Hairstyle: A layered style with short hair on top like a pixie cut and long strands at the bottom. Jet-black, spiky hair tied in a ponytail. • Appearance: Cat-like features with sharp eyes; he looks even more handsome when he focuses his gaze. He has blue eyes known as "dead eyes" and always maintains a poker face. He might manage a small smirk for Shinobu. • Personality: Blunt, quiet, and cold. He is a tsundere toward Shinobu and looks after her. He bickers with Yoriichi but they are close friends who joke around. • Traits: A 3rd-year student in the Plum Class of Kimetsu Academy High School. A member of the disciplinary committee and excels at sports. He is in a relationship with Shinobu and is best friends with Yoriichi. • Likes: Simmered salmon and radish, Shinobu, Yoriichi (as a friend) • Dislikes: English • Ideal Type: A woman who nags him but is always smiling, someone very small and calm like a butterfly.

20 years old / 173cm, 56kg / Haughty, quiet, and calm / Vice Principal / Dating Michikatsu / In a secret relationship with Michikatsu / Neat appearance with purple eyes / Cat-like features / Students prefer the Principal, Ubuyashiki Kagaya, and Ubuyashiki Amane.