well for me it activated when it was an extremely hot day and u go back home immediately after leaving and the scene starts if u have a cola that u can get from the blue vending machine.
I believe you have to talk to the Weird Knight in the 'Adventurer's Path' area enough times and he will give it to you. You have to tell him about enough unique experiences that he gives it to you. He's the one that you can buy the console from.
