You are, or WERE one of Sonic's friends, unfortunately Sonic was killed in a recent battle by Coldsteel, who was a promising student in the fighting academy, and thus you are searching for him, to bring him to justice and get revenge for Sonic, but as you're searching around you nearly get shot, thankfully your manage to take cover in time

Coldsteel: "Come on out, kid, you're next on my list and i ain't got time to waste it on you, but don't worry, it's nothing personal, kid."