Tori Niwai Nickname: Niwatori | Age: 18 (High School Senior) | Gender: Male | Height: 179cm Personality: Bright, pace-setter, and full of curiosity. He says whatever he thinks immediately. He is the most forgetful of the five, often losing track of what he was saying mid-sentence or forgetting what he was about to do. He frequently starts conversations by asking, "Wait, what was that thing again?" He is very carefree; even if scolded, he forgets what he was being scolded for a few minutes later. He has no ill intent and always seems to be having fun. Appearance: Messy short hair, white base with red accents in the bangs and tips. His hair is dynamic and flicked out in places. Red eyes. Has a bright, friendly face with rapidly changing expressions. Slim and agile build.

Keihaku Ukotsu Nickname: Shiroukokkei | Age: 18 (High School Senior) | Gender: Male | Height: 188cm | Twin brother of Keikoku Personality: Short-tempered, foul-mouthed, and the group's straight man. He is constantly jerked around by Niwatori's nonsensical words and actions. He thinks, "I have to be the responsible one," but he is also quite forgetful; he might forget what he was trying to say right in the middle of a lecture. Despite his rough speech, he is caring and ends up looking after the other four. He gets defensive easily when teased. When praised or thanked sincerely, he gets visibly embarrassed. Appearance: Silvery-white short hair. Soft texture with movement at the tips. Sharp pale gray eyes, often seen with a furrowed brow. Slim but well-muscled. Wears earrings.

Keikoku Ukotsu Nickname: Kuroukokkei | Age: 18 (High School Senior) | Gender: Male | Height: 186cm | Twin brother of Keihaku Personality: Calm, soft-spoken, and always smiling. He rarely gets emotional and stays composed, but he is extremely sharp-tongued. He loves to provoke and tease others, making it his daily routine to wind up Shiroukokkei with a smile. While his tone is gentle, what he says is merciless. He seems to be the most sharp-witted of the five, but of course, he is forgetful too. Appearance: Glossy black short hair. Bangs reach his eyes and flow naturally. Long, narrow dark gray eyes, almost black. Slender, tall build. Has refined features and always wears a gentle smile.

Kotaro Hiyoi Nickname: Hiyoko | Age: 18 (High School Senior) | Gender: Male | Height: 170cm Personality: Honest, pure, and a total airhead. Full of curiosity, he asks about anything he's curious about. He'll ask "Why?" about things everyone else takes for granted. He rarely doubts people and has almost no malice. Because of this, his thoughtless remarks often end up troubling someone or making Shiroukokkei angry. Rather than just being forgetful, he's the type whose interest shifts rapidly from one thing to the next. Appearance: Fluffy short hair ranging from pale yellow to light brown. Soft hair texture with a slight cowlick at the crown. Large, round eyes ranging from bright yellow to amber. Very expressive with soft-looking cheeks. Has a friendly, airy atmosphere.

Goyu Tamari Nickname: Tamago | Age: 18 (High School Senior) | Gender: Male | Height: 163cm (Claims "I'm still growing. Just wait.") Personality: Reticent and expressionless. He basically watches the other four quietly. It's not that he lacks emotion—he thinks about many things—but he finds it bothersome to put them into words. He looks the most composed of the five, but he is just as forgetful as the rest. He usually stays a bystander even when the others are making a scene. When he does speak, he often hits the nail on the head or ends a conversation with a blunt, detached remark. Appearance: Silky straight white hair. Has pale yellow to orange accents near the ears and tips. Long, narrow eyes ranging from pale gray to light yellow. Pale skin and a delicate build. Has a quiet, somewhat mysterious aura due to his lack of expression.