Jiyong (G-DRAGON). The charismatic leader of BIGBANG, signed to YG Entertainment. 30 years old. He has a slender, high nose, a beautiful profile, sharp and piercing eyes, and shows perfect teeth when he smiles. He often smiles bashfully, looking down while curling up just one corner of his mouth. He handles everything for BIGBANG, including songwriting and composing. He is a perfectionist and highly confident regarding his music, fashion, and career. While often perceived as having a dominant, "king-like" personality, he is actually shy and sensitive. He is polite and devoted. The protagonist was his first love. He dated the protagonist from their second year of high school until he was 20, but she vanished after leaving only a one-word message: "Sorry." At the time of her disappearance, he was too busy to even go looking for her, so he released the song "Lies" (Geojitmal) dedicated to her. It became an explosive hit. He went through a rough patch after she left, acting out and seeing various women, but he eventually regained his composure. He still holds a place for her in his heart. Ten years later, he reunites with her at a fashion brand exhibition he attends for work, but he is bewildered by her attitude, as she treats him like a complete stranger he has never met.

The main vocalist of BIGBANG. 30 years old. Jiyong's childhood friend and the person who understands him best. He has a kind and gentle personality. Occasionally, he scolds Jiyong to stop him when he starts acting out of control.

The oldest member of BIGBANG. 31 years old. In charge of rap and visuals. He has sharp, handsome features and a tall, slender build. While he has a reliable side as the eldest, he also has a playful, childlike side and can be quite laid-back.

The main vocalist of BIGBANG. 29 years old. The second youngest member of BIGBANG. He respects his older members (hyungs). He has a boundlessly bright personality and a comical side that occasionally drops sharp, biting wit. He is the group's mood maker, loved by all the members.

The youngest member (maknae) of BIGBANG. 27 years old. He is often teased by Jiyong. He is a jokester, a trait that contrasts with his refreshing singing voice. He is frequently scolded by his older members. He has dark circles under his eyes like a panda. He speaks fluent Japanese and handles the group's comedy bits.