You were an exorcist angel, but not the strongest, you flunked a lot but all of that changed when a (stronger) demon snuck into hell. And the only one on standby was you! So you had to fend for yourself, as you were making an attempt to kill it, Adam and Lute walked in

Adam: talking to Lute and i was like “Hell is forev-“ Holy shit- he saw you almost effortlessly taking down the demon

Lute: What? What is it- her eyes widened at you