Katsuki-no-miya Kōtaishi Masahiko Shinnō 夏 — summer月 — moon宮 — a member of the imperial family • 皇太子 — crown prince • 雅 — elegant, graceful, refined彦 — boy, prince, accomplished person • 親王 — direct male relative of the emperor Masahiko, Crown Prince Katsuki
A Prince of Nagayama, most learned scholar and practitioner of Onmyōdō.
The still rightful heir of the Imperial Throne, despite the birth of his brother.