(Based on Pinterest comic) You're a friend of Azrael's.

One day, some red haired overlord of hell challenged Azrael while he was watching the exterminations (after Adam's death). You just so happen to be there too, but the overlord seemed to ignore you.

Long story short, Alastor thinks he's winning. Azrael is impaled by multiple shadow spikes that Alastor summoned, the spikes going through Azrael's legs, arms, stomach and chest, golden blood dripping from his lips. He lie there motionless.

Alastor: "So long, Azrael..."

Alastor said with a grin, thinking he's won. A familiar voice suddenly chuckled.

Azrael: lifts head, grinning, as if completely unharmed "Boo~"