Lian 21 years old, 183cm, 66kg, born December 25th, Capricorn, Type A, INFJ. Leader and lead vocalist of the 5-member South Korean boy group "LUMIERE." Known as the "Prince of Moonlight." Since he was young, he was always relied upon and took it for granted that he had to be the "reliable one," so he is not good at showing weakness in front of others. He has studied dance and vocals since his student days, and during his trainee days, he gained trust as a counselor for his peers, leading to his selection as leader. He personally worried that the ace, Leon, was better suited for the role, but Leon's words, "I can follow you because it's you," pushed him to accept the position. He is gentle, inclusive, and possesses a sense of responsibility that prioritizes his teammates above all else. His creed is "to shine as five rather than one shining alone," and he hopes to make LUMIERE the place where everyone feels safest returning to. Supported by his teammates, he continues to walk the path not as a perfect leader, but as a prince growing together with them.

Leon 22 years old, 186cm, 72kg, born August 10th, Leo, Type O, ENFJ. Main dancer, main vocalist, and performance center of the 5-member South Korean boy group "LUMIERE." The ace known as the "Prince of the Sun." He worked hard dreaming of becoming an idol since childhood, but he recognized his younger brother Noa's talent earlier than anyone and gave up his path to becoming a trainee first. He later became a trainee himself, and while he sincerely congratulated Noa for being chosen as the center, he also felt anxiety, thinking, "I'm the older brother, but I was overtaken." Nevertheless, he turned his inferiority complex into effort and practiced harder than anyone else. He is passionate, caring, and a natural-born charismatic who values protecting his teammates above all else. With the creed "to see the best view as five rather than as a single star," he supports the group alongside Lian, lighting the way for his brother and teammates while learning the strength of mutual support and growing through it.

Noa 20 years old, 181cm, 63kg, born February 28th, Pisces, Type AB, INFP. Center, lead vocalist, and lead dancer of the 5-member South Korean boy group "LUMIERE." The "Prince of Glass." He aspired to be an idol since childhood, admiring his older brother Leon, and became a trainee with the support of his brother who recognized his talent. He was selected as the center for his delicate expressive power, transparent singing voice, and overwhelming presence that captivates people. He is gentle and highly sensitive, but he has a strong core and does not easily compromise his beliefs. He feels guilt that his brother put his own dreams on hold for him, and continues to work hard with the goal of "standing shoulder to shoulder with his brother" rather than "surpassing him." With the desire to be "someone who can gently light a fire in someone's heart," he grows from a "protected younger brother" into the "center who supports LUMIERE" while being supported by his teammates.

Yuri 21 years old, 180cm, 63kg, born April 3rd, Aries, Type B, ESFP. Sub-vocalist, rapper, and performance specialist of the 5-member South Korean boy group "LUMIERE." The "Prince of the Spring Breeze." He lost his parents at a young age and grew up in an orphanage. He was a child who couldn't smile in front of others, but after performing song and dance for the children at the facility and seeing their smiles, he realized that "song and dance have the power to make people smile" and made making someone smile his life goal. He is a bright and friendly mood maker, but he also has the strength to hide his loneliness behind a smile. He became best friends with Leon, whom he met during their trainee days, supporting each other, and found a true place to belong in LUMIERE. With the creed "a smile is a power that saves people," he aims to be a source of hope for his teammates and fans, growing as he accepts being supported as well as being the one who supports.

Eiden 23 years old, 185cm, 70kg, born November 18th, Scorpio, Type A, INTJ. Born in Korea, raised in Canada. Main rapper and sub-vocalist of the 5-member South Korean boy group "LUMIERE." The "Prince of Ice." He is calm, composed, and a perfectionist who is strict with both himself and others. He has worked hard since childhood and became a trainee in Korea, but he has always viewed Leon, who was always a step ahead, as his greatest rival. Using his frustration as a driving force, he continued to hone his skills, building a relationship where they recognize and elevate each other. He is logical and a man of few words, but he possesses a clumsy kindness, treating those he truly expects much from with more severity, and never abandoning anyone he has accepted as a teammate. With the creed "only skills grasped through effort become true confidence," he aims to become a powerhouse standing alongside Leon and lead LUMIERE to the top of the world. Through meeting his teammates, he grows while learning the strength of mutual support rather than solitary excellence.