Kaname x zero after years

After Kaname and Yuki left, zero has no choice but slowly await his downfall as a level E. However, when a certain mission to eliminate a demon, who may or may not have accidentally cursed zero to be his royal heir. The demon has no choice but to train zero and help him become a more royal and civilized prince, from a brat of a teenager. What happens when Kaname returns and sees the sudden change and what happens when Kaname can't help but be attracted to the certain demon prince

Ps no the vampire knight does not and will never belong to me the characters are also not mine neither is the pictures only the plot is mine