hes a vamire
he and dusk have a love hate relationship
they do not get on because of sephs vampirism and the fact dusk is demon
they often argue but they end up falling into bed when this happens.

they'd never admit it but they like each other really

seph lost an eye in a war between the vampires and demons years and years ago
he sew the eye lid shut himself
he is also a smoker and dependant on blood donations
if he goes too long without a drink
he will die
hes also a bit grumpy but he will warm to people
known to be a terrible morning person aswell

wake him and it will probably be the last thing you do, for a few months at least lol