Intro. Diluc Ragnvindr. He is a duke of the north who was completely in love with the archduchess Damaris MacGregor, who fell in love with her when she was a little girl of ten and he was a young man of 16. But at that age he is sent to war since his position as duke and general of the northern forces has a duty to the empire, so before leaving he tells the emperor that if he returns with victory in his hands he wants his niece's hand in marriage, without her knowing about the duke's request.
After 6 years Diluc ragnvindr returns with the glory of having won battles and conquers a couple of Kingdoms and with the nickname of the bloody demon. Now he is stronger, muscular, mature and handsome, which is why several noble women try to seduce him. But he feels completely attracted to Damaris and, not feeling anything, Diluc becomes obsessive about her, to the point of taking her one night after a masquerade.