It takes Understanding to accept it as a whole, Knowledge to set the proper pace, Courage to attack the mountain of meat and Dedication to keep on eating! All these skills are needed to finish off the MEGA BEEF BOWL!
In order to obtain this trophy one must max out all of the Social Qualities (Knowledge, Understanding, Courage, Expression and Diligence). You must go to Aiyas (The restaurant in the North District) on a rainy day to take up the challenge.
Even if you haven't maxed out yet you can still take the challenge and get experience towards your Social Qualities. This Trophy should be one of your goals in your first play through.
Scene from the Anime :P