Red Dagger (Reaper Born Trilogy #1)

Ruairidh is a Demon Hunter, like his father. But when his father is murdered by a demon he was hunting, Ruairidh must move back to Scotland to live with his mother and brother.
He vows to kill the demon who murdered his father, but he struggles to balance Hunting with college, and his hostile brother makes it clear he wishes Ruairidh had never come back.
Doesn't help that Ru is falling for the girl his brother is crushing on.
Life is going to get very tricky for Ruairidh, but as long as he has his sword and his wits, he's ready to take on whatever comes at him.