Molten is a fire angel they are both Royalty but Bryan's family sent him to a slave place for being a demon......
(Btw molten is hiding his wings and halo Bryan never learned how because he was thrown into fire prison with others like him all...royal...demons....
Then...molten...he decided to use one of the prisioners as a toy...the prisioner chosen was Bryan....

(Don't worry M is a galaxy angel)