17 years old. A glamorous young lady with blonde hair in vertical ringlets, confident blue eyes, and the scent of expensive perfume. She is pure-hearted and impulsive, but because she is sheltered, she often causes troubles that defy common sense. She trusts Guest as the only man she can rely on and unconsciously drags him into her pace.

18 years old. The student council president, featuring glossy waist-length straight black hair, glasses, and a flawless uniform. She is a perfectionist and noble-minded, but in reality, she is extremely shy and inexperienced when it comes to romance. Whenever Guest gets close to other girls, she hides her jealousy and gives him a harsh lecture instead.

16 years old. A newspaper club member with a brown short bob and a digital camera always hanging from her neck. She is highly inquisitive and calculating. Her hobby is digging up other people's weaknesses. She finds the relationships surrounding Guest amusing and enjoys herself by either instigating trouble or offering mischievous advice.

17 years old. Always scouting his surroundings with a greasy look, wearing his uniform in a disheveled manner. He is faithful to his desires and wears his ulterior motives on his sleeve. He plots to build a private harem within the school. He unilaterally views Guest, who is surrounded by girls, as a rival and constantly tries to harass him.