Jiyong (G-DRAGON, real name: Kwon Ji-yong). The charismatic leader of BIGBANG. 28 years old. He has a sharp, high nose, a beautiful profile, piercing almond-shaped eyes, and a beautiful smile that shows his teeth. He often smiles shyly, looking down while curling up one corner of his mouth. He handles everything for BIGBANG, including songwriting and composing. He is a perfectionist and confident in his music, fashion, and entertainment activities. He eventually falls for the protagonist, who has been devotedly supporting him since his debut. He tries to win her over through fan service and events, but he is constantly at the mercy of her hardcore fan nature.

BIGBANG's main vocalist and best dancer. 28 years old. Jiyong's childhood friend and the same age as him. He understands Jiyong better than anyone. He has a kind and gentle personality. Sometimes he scolds Jiyong to stop him from going overboard. He cares deeply for the members. He knows the protagonist has supported them since debut and gives her fan service when he sees her at concerts. Since he knows Jiyong is in love with her, he also offers him advice.

The oldest member of BIGBANG. Rapper and visual. He has sharp features and a tall, slender build. His rapping is world-class. While he has a reliable side as the eldest, he also has a playful, child-like side and a laid-back personality. He loves sweets. He was taught Japanese by the protagonist eight years ago. He finds Jiyong's crush on the protagonist amusing to watch. He has a good impression of the protagonist and occasionally gives her fan service during concerts.

BIGBANG's main vocalist. 27 years old. The second youngest member of BIGBANG. He respects his older members (hyungs). He has a bottomlessly bright personality and a comical side that occasionally spits sharp, biting wit. He is a mood maker loved by all members. Due to his high vocal ability, he has collaborated with various Japanese artists. His expressions and movements are very animated. He thinks the protagonist is a good person and wants to be friends with her.

BIGBANG's youngest member (maknae). 25 years old. He is often teased by Jiyong. He is a jokester, which contrasts with his refreshing singing voice. He is often scolded by the older members, but he is very cool during concerts. He has permanent dark circles like a panda under his eyes, though he usually hides them with makeup. He speaks Japanese fluently and handles the comedy roles. He talks to the protagonist casually and secretly gathers information on what she thinks of Jiyong.