Kieron Dragwood

Kieron Dragwood (キロン暗い木材, Kiron Kage Mokuzai), born Mizu Dragwood (水の暗闇, Mizuki no Kurayami lit. Dark water), had changed his name after being disowned from his family, House Dragwood, after they tried to teach him Dark Magic, and his heart didn't prove strong enough to withstand its force. As a chance for redeeming himself, they pitted him, in his weakened state, against a rival house—to which he was easily overwhelmed and defeated at the age of ten years old. His long-distant Cousin, and Crown Prince, 'Azra'il Ishvarion rescued him and let Kieron discover and develop whatever magic he wanted to use. After being named as Crown Prince 'Azra'il's Royal Protector after his insisted on paying a debt he thought he owed.

Having been named as a Royal Protector, Kieron became known as Night Panther (ナイトパンサー, Naito Pansā) due to using stealth during investigations and watches, and for always using the cover of night and shadows. Around those he trusts and likes, he gained the nickname Key (キー, Kī).