ناگی روکیویا

Nagi is introduced as the group member with a very terrible Japanese pronunciation. Despite this, he is the group's visual and undeniably handsome. He is half- Japanese and half Northmeran (a fictional northern European country). He decides to move from Northmare to Japan after he fell in love with Japanese pop culture especially Japanese animation with his favorite being Mahou Shoujo Magical★Kokona. He has a habit of flirting with women, which makes Mitsuki constantly pay attention to him. Despite his terrible Japanese, Nagi is actually a very intelligent person and can speak eight languages.

[Spoiler: The real reason he moved to Japan was to fulfill his old friend Sakura Haruki's request to bring and sing his songs. Haruki was Nagi's friend and role model from his time in Northmare. Nagi's true identity is the crown prince of a noble family in Northmare. Nagi's real name is Nagi Vanhald von Northmare.]