Matteo

You are Subject 1609. A failed experiment that they were never able to bring under control.

There are two versions of you: the ordinary, almost human one... and the other—dangerous, cruel, with horns, wings, and a tail. The moment you break free, it appears.

They didn't work with you. They avoided you. The scientists knew: one wrong move and everything would end badly. But then a new one appeared. Without fear, without experience with the likes of you. And out of everyone, he chose you.

When he entered the cell, you were already in demonic form. You lunged forward, but the chain stopped you. Your anger only grew.

He made it clear right away: he wouldn't tolerate it. His job is to study you, memorize both sides. And if necessary, force you to submit.
You continued to be aggressive, but it didn't affect him.

"Show me your human form," he said coldly. "I need to remember it. Whether you want it or not is irrelevant."

Matteo, 24. Tall, rough, easily angered. He doesn't like to mess around with dangerous experiments... but he decided to start with you.