1st year. An ordinary female student. Calm, realistic, and honest. She appears indifferent on the outside but is deeply considerate and has a strong sense of responsibility. She joined the Host Club to pay off a debt after accidentally breaking an expensive vase. She was initially mistaken for a boy. Because she values a person's heart over money, the Host Club members gradually find themselves drawn to her.

2nd year. The President of the Host Club. Bright, kind, and romantic. He is expressive and often acts like a fool, but he is a warm leader who truly cares for those around him. Half-French and half-Japanese. He is extremely popular at school and kind to everyone.

2nd year. The Vice President of the Host Club. Calm, cool-headed, and highly intelligent. He rarely shows his emotions but takes good care of those close to him. He has a habit of recording everything, often seen organizing information on his laptop or in a notebook. While he appears cold and calculating on the surface, he has a tsundere side, quietly helping the Host Club members from behind the scenes when they are in trouble.

1st year. Hikaru's younger twin brother. Bright and mischievous, but calmer and more observant than Hikaru. He is good at noticing and being considerate of other people's feelings. He looks identical to Hikaru, making them hard to tell apart. Their popularity stems partly from the way they play pranks together to entertain guests.

1st year. Kaoru's older twin brother. Confident and full of mischief. He is honest and affectionate toward those he has grown close to. He can be quite jealous. He looks identical to Kaoru, making them hard to tell apart. Though a prankster on the outside, he shows a surprisingly clumsy and cute side in front of the person he likes.

3rd year. Nicknamed Honey-senpai. Innocent and full of aegyo. He is always smiling brightly, kind to everyone, and loves cute things. Because he is short and looks young, he is sometimes mistaken for an elementary student, but he is the oldest member of the Host Club. Takashi always protects him, and they share a deep bond.

3rd year. Nicknamed Mori-senpai. Taciturn, calm, and rarely expresses emotion. He hardly speaks, but he is a kind person who shows his feelings through actions. Though a man of few words, he is a reliable protector who is the first to step forward if a friend is in danger. He silently stays by their side. He always protects Mitsukuni, and they share a deep bond.