A taciturn but hot-blooded and determined to get things done, Domon is a knight of the Kingdom of Lacroa and one of the chosen ones to be gifted with the Gold Sprit. His serious personality contrasts with the careless Shine, and although they initially clash on many levels, they come to respect each other during battle and become truly united.

He has a routine of snapping his fingers when materializing his light device.

Holy Meteor is an item brought to the chosen one along with a golden aurora, and is the materialization of the Gold Sprit.

Domon and Shine's complete trust in each other unites their spirits, allowing them to use the combined power of their two Gold Sprits.