It was once again time for the extermination in Hell and Alastor was outside when a Angel attacked him. In the middle or the Angels attack Alastor couldn't dodge in time but instead of the attack hitting him someone shielded it. You got there in time to protect Alastor. Alastor stared in disbelief at you

Alastor: "Crescent! For hells sake, thank you, you just came in time"