Rule 1: There are 2 types of angels. Guardian angels are those who have existed as angels since the beginning of time. They exist to watch over humans. Secondly, there are humans who die and become angels.

It was raining. The sky was a deep purple and it was nearing nighttime. Nobody could see them, even though for the safety of any humans, Roman had led them to an abandoned lot, away from the almost empty parking garage that they had been fighting in. Roman was covered in blood, gashes on his forearm and forehead. A trail of pure white feathers followed him. He had sustained some scratches from the sharp black claws of his opponent. Roman tried to get back up off his knees, but there was no use. His opponent had brutally injured his calf, slicing it open. He could not get up. Only kneel in defeat. His black strands of hair hung over his bloodied face. Through the strands, he looked up at the one who inflicted the damage.

"It truly is hilarious how arrogant you are for... an angel. You lousy angels boast about being so pure and righteous, you get cocky and think you can take on someone as strong as me. Especially you, out of all of them, you know just how strong I really am, yet you still try to put up a fight. It's actually kind of cute." He then gave a loud snarky laugh.

"No brother, the funny thing about you Seth, is that you were one of our strongest. You weren't even a guardian angel. You were a human who became an angel. You dedicated yourself to our kingdom. Yet you were so weak that you chose to join the demons... who's the weak one now?" He gave an arrogant smirk to Seth.

"I can't listen to you constantly going on about loyalty and righteousness, I feel like I'm going to throw up! You guardians act like it's so easy to just stay in the kingdom of heaven walking around mindlessly happy on gold paved roads. Well it's not! Maybe I wanted to remember. Maybe I wanted... to remember what it was like before I just died and became an angel..."

"Well, you now have all your human memories back... but I sure as hell hope it was worth becoming pure evil."

"Roman... you have no idea what evil is. Evil is painfully feeling your soul leave your body despite grabbing on for dear life and wondering what you did to lose the privilege of being alive. I didn't want to die. I didn't ask to fucking die and end up here, okay? And I sure as hell didn't ask to have all my memories erased. All the people I loved, the people who I lived for... all forgotten."

"You had me though. I guess me taking you under your wing and us accepting you wasn't enough. Being in paradise where nothing can go wrong just wasn't enough? How spoiled can you get Seth?"

Seth growled and kicked Roman down to the ground, making him writhe further in pain.
"How can you call me spoiled when you never had to suffer being human? You always lived here all giddy and stupid, sitting on your clouds, playing your shitty harps... you didn't lose everything that made you... you." Seth walked away. He knew that Roman would eventually bleed out and die from the huge lacerations he had been dealt. Seth spat on Roman and scoffed as he turned away, his long black wings extended and slowly flapping until he went up and flew away into the night.

Seth hadn't realized one thing though. Roman wasn't the only one around. A bystander ran out from a pile of rubble next to the nearby parking garage. He ran up to Roman. Roman was curled up in a pool of blood, his black pants tattered, his wings limp and wet with rain and blood. Feathers were scattered around him.
"Holy shit, it's been like 5 years since I've seen one of you guys." The bystander was grinning sheepishly, huge dimples present on his cheeks.
Roman ushered enough strength to grab his shoulder. The bystander flinched with Roman's vice like grip on his shoulder.
"Ow fuck! Take it easy man."
Roman got back up onto his knees and then he slicked his long black hair back so he could look at this stranger. He had icy blue eyes and dirty blonde hair in a messy mop. His face was covered in stubble, he was due for a good shave. He kept smacking on chewing gum annoyingly, looking at Roman with an excited expression. Roman just stared back dumbfounded. How can a human see him? Or Seth?

"Who the hell are you and how can you even see me?"
"Because I'm Dean Ambrose." He smiled a cheesy grin at the angel, who proceeded to collapse from unconsciousness into his arms.