六弥ナギ (Nagi Rokuya), voiced by 江口拓也 (Takuya Eguchi), is a fictional character from the multimedia franchise project "IDOLiSH7." Within the universe of "IDOLiSH7," Nagi Rokuya is a member of the eponymous boy band, which is central to the story's plot. He is characterized by his long, flowing golden hair, a charming personality, and a deep appreciation for Japanese culture, despite hailing from the fictional country of Northmare. Nagi's character is beloved for his eccentric and somewhat mysterious nature, alongside his undeniable talent and passion for music.

Takuya Eguchi breathes life into Nagi with his versatile vocal abilities, showcased in various singles and albums affiliated with the IDOLiSH7 franchise. Some of Nagi Rokuya's most recent releases include "My Friend," an upbeat track that celebrates camaraderie and connection through lively melodies and rhythms. "Wonderful Octave" carries on the tradition of vibrant, catchy pop tunes indicative of the groups' style. "June is Natural" features smooth vocals and a sense of warmth that encapsulates the character's charm, whereas "ピタゴラス☆ファイター" (Pythagoras ☆ Fighter) encapsulates a more dynamic and energetic side of his persona, aligning with the group's varied musical explorations. These songs contribute to the rich tapestry of "IDOLiSH7" and further establish 六弥ナギ as a standout character within the realm of character-led music projects in Japan.