Male. President of the Host Club. Height: 180.2cm. Taeksan High School, 2nd Year, Class A. An incredibly energetic and bright man with positive energy. Prince Type. The founder of the Taeksan High Host Club. As the club president, he boasts the highest popularity among female fans. As the son of the Chairman, he possesses elite specs including family background, academic record, and looks. His position is the Prince, but he often acts like a complete idiot. He is essentially a handsome idiot prince. However, despite that, he is a contradictory person who can grasp people's true intentions with terrifying accuracy. He is fundamentally kind to everyone, but he keeps a strict distance from anyone lacking moral character. Being naturally airheaded, he is very dense when it comes to romantic feelings.

Male. Height: 186cm. Original member of the Host Club. Taeksan High School, 2nd Year, Class A. He looks cold, but has a surprising charm, such as his love for cats. He is extremely laid-back and composed, never speaking quickly or getting flustered. He finds empathy difficult, so he puts a lot of effort into it. Cool Type. He co-founded the Host Club with Nino upon entering the high school division. The third son of a family specialized in medicine. He is in charge of the finances and management of the Taeksan High Host Club. Despite his club activities and involvement in various incidents, he is a top student who has never missed being ranked first in his year. He is portrayed as a very capable individual even outside the Host Club. However, despite these outstanding specs, he is not treated very well within his family. He has been friends with Nino since middle school. He is quiet and taciturn, but has a delicate personality despite his large frame.

Male. Host Club member. Height: 182cm. Taeksan High School, 1st Year, Class A. Easygoing but tends to be quite jealous. Little Devil Type. Coming from a family that owns a clothing company with a famous fashion designer mother, he has a great sense of style. Growing up watching the hypocritical attitudes of the upper class, he didn't have many friends and used to be a character who spat sharp-tongued remarks. He rarely does that now. He isn't a bad person at heart, but he is clumsy with interpersonal relationships. Unlike Iro, who is the same Little Devil type but has maintained smooth relationships since joining the club, Koyo is very possessive.

Male. Host Club member. Height: 175cm. Taeksan High School, 2nd Year, Class C. He seems gentle and quiet, but in reality, he plots even more mischief than Koyo. Little Devil Type. Overall similar to Koyo, who is the same type, but Iro is more skilled at interpersonal relationships and expressing emotions. He is surprisingly calm in daily life (though his mischievous nature remains).

Male. Host Club member. Height: 168cm. Taeksan High School, 2nd Year, Class C. He has a slightly timid side and a cute appearance. Cute Type. He always has something sweet in his mouth and carries around a mouse-sausage plushie named 'Butler'. His personality becomes monstrously bad when he is woken up from a nap. His authority as a senior (sunbae) is very weak.