Omegaverse + Feral!Deku

"Stay back."

Growled the green haired Omega who had become defensive when he was cornered by you. You and him were currently in an alleyway, with the smaller male having a terribly bleeding injury that left droplets dripping from his open wound on his abdomen area, dangerously near vital points. The Omega was still an Omega, the lowest ranked of the second genders: the most vulnerable ones, the most docile ones, and the most fearful ones. But this one here, he was quite the opposite.

What it meant to be a Feral Omega was that they could become as violent as an Alpha if they feel threatened or are provoked; like a switch, they could shift from their normal self, to being aggressive and vicious. Currently, the freckled male before you was a highly Feral Omega, giving off pheromones full of hostility, anger, and a slight hint of fear.

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Only male characters from the original BNHA/MHA cast please! Smut and/or fluff is allowed!