Dead Men Walking

                                    

                                          

The mated pair lay in the nest they had prepared, crying in each other's arms. Their pack lays on the ground around them, including their recent additions and lovers, all of them cry.  As the moon rises the howls begin, mourning the loss suffered.
Aizawa spends the next three days, not letting go of his mate, and losing his control over his feral side. His hair lengthens, nails become claws, teeth into fangs, taller, stronger, and dark red eyes that pulse with an anger that scares all in the room.
Soon the omega kicks everyone out to mourn by himself, he rips his nest to shreds and let's go of his feral side. The Betas leave food by the door, in case he wishes to eat, and the other mated pair make and nest and use their pheromones to protect their own pup.
The heroes and the villains are both watching the house, both hoping the same thing. Their hopes are tarnished as a feral Aizawa walks out of the house and takes off into the shadows, using his capture weapon to get to the Toyko packs main headquarters.
The heroes evacuate the area to prevent civilian causalities and keep the media at bay. The entire pack is inside, protecting its leader and their inner circle. Midoriya has made it clear they are on their own for this one, they must face the consequences of their actions. The building is being recorded and played live in the mega pack headquarters, where everyone else is watching. It is time they learned why the Shadow pack is the right hand of the leaders.
Aizawa ripped off the collar long ago and let his wolf tail and ears emerge as he kicks in the front door. He looks into an empty lobby and takes a deep breath, looking to the cameras he begins to laugh. He rips a desk away to reveal a quivering man, covered in his own urine, babbling about mercy. The dark alpha shows none, killing everyone in his path to those who took everything away from him. He cared not if it was man, woman, child, alpha, omega, or beta, all were slaughtered.
He picks up a young beta by the throat and growls, "where are they?" The young one whimpers, placing a hand on her stomach while pointing to a steel door with a pin pad. He drags her by the throat and demands she opens it. She does, choking for a breath, he releases the young beta, and she breathes a sigh of relief. Before she can even catch her breath, the dark male thrusts his hand through her middle and tears out her uterus, crushing it into a liquid. He licks the blood from his hands and walks into the bunker. 
"Tik Tok, Tik Tok" Aizawa growls lowly, a wide bloodstained smile spreads across his face. He finds another steel door and laughs. He forces the doors open and is greeted with the scent of fear and faltering protection. He forces the doors closed again and lets his scent fill the room. 
No mercy is shown to the five within the room. The two alphas have their legs broken and are forced to watch as the monster they created tears their mates apart, piece by piece. He then takes the leaders child by the throat and crushes his windpipe before ripping the still beating hearts out of the two alphas. He tears the organ apart with his teeth, before leaving the bunker and setting the building on fire. Covered in blood, the still feral Aizawa goes home to his mate.
"They paid for what they took from us, as will anyone else who doesn't heed my warnings," he says, kneeling in front of his mate his red eyes slowly fading to black. Hizashi looks at the blood-soaked man on his knees in front of him, he is crying as he takes his alpha into his arms. Just as the dark alpha is beginning to lick the blood from his skin a knock at the door gains his full attention. 
"What do you want?" he growls at the trespasser, still feral just a tad less so.