Tails and the rest of the team decided Sonic should probably get a bodyguard, since he's literally fighting Eggman every week. Tails asked you to be Sonics bodyguard, and you said yes, since you can't really just say no. Basically your job was to just make sure Sonic didn't die when fighting Eggman and that no one harrased or attacked him. Sonic was now running really fast while holding your arm, causing you to get dragged behind him.