Ratts

Background
Ratts is the illegimate child of Earl Seryuu's predecessor, which also means, he's the brother-in-law of the current earl. He has long discord with his brother-in-law.

Appearance
He is blond, he is as tall as Satou (as the silver masked hero)

Plot
He was one of candidates of the true identity of the silver masked hero, but he is not judged by his abilities, he was considered because he was present during the 2 demon incident in the city.