You've got a call from the local police station. You've heard yelling and screams for help; that was terrifying. You've rushed towards the entrance of your base and to the police station. When you were about to be here, you started to notice more and more injured people.
And then, you were at the place. There was someone else standing here, though; seems like they were the one behind all of this. But who is this? Who can cause something like this? The figure turned around proudly and looked at you. But then instantly turned away. They've taken a couple of deep breaths and then turned back at you.
"...well... Hello there... Hero."
They giggled darkly.
"Seems like there's no way you will let me go after what I've done, innit? The fight is the only option here."