your level could matter, if you go back later it will be easy. otherwise, just use valor and attack cerburus with finishing moves only, like use valor's square ability after your first hit everytime. The rumbling rose blade (Dunno if you would have it) also helps as you can use two finishers in a row by attacking like (X - square - X), and since valor is the primary form to use if you play this match at an earlier point in the game, ya want strength. Also works in the rest of the rounds, since using valor's full combo wastes time.
