You travel to the Super Mario Bros World, where the Mushroom Kingdom stands. While looking around the strange place,
you asks someone where their boss is, since you are trying to help with the robberies. (Soul Easy, 4 Success) The first 'person' (some sort of weird crossing between man and mushroom) you find points you out towards the Mushroom Palace, telling you that Princess Toadstool is in there and should be able to tell you more. Before you part, he says "This ain't Bowser's work, he's more prone to kidnap the Princess than steal things. Still, I heard that a few Koopas were seen doing that."
The two of you move for the palace, trying not to be amazed at how magnificent the place is.
You enter the palace, and inside you find a young lady with long blonde hair, sitting on a throne while she speaks with another of these mushroom men, but this one has a mustache and small glasses. The woman sees you two, and she smiles.
"Oh, you must be the men sent to solve the problem with the robberies! I'm not sure if you know about me, but in any case, I am Princess Toadstool, the ruler of the Mushroom Kingdom. But, you, you are a bit young for this, don't you think?" she asks, pointing at
you.
You just shrug, preferring not to tell her
you are actually sixteen and have braved lots of dangers in
your world. (Soul Easy, 1 Success) She gets the gist of what you are trying to convey. "Well, if you feel up to the task, I don't see any reason to send you back." She looks at both of you. "Now, the mission. You may know that the 1-Up Factory is a few kilometers from here, and is one of the main businesses that bring wealth to our kingdom, as we supply the best 1-Ups in the entire Video Game Land. However, these last few nights, we have had some problems in there, as someone keeps getting in the factory and stealing boxes of 1-Ups before they are sent to their buyers. As you can imagine, this is making us lose a lot of money. If you can find the boxes and arrest the robbers, you'll be rewarded. If you have questions, you can ask the factory night watchman, he is probably there at the factory getting ready for the night. Go easy on him, please, he's taking it hard. And, here, have this map, it will show you the way." (You get a map of the Mushroom Kingdom)
The two of you nod, and leave the palace.
What you can do: Now, you can go to the factory and see if you find something strange or ask the watchman or you can do some tourism around the Mushroom Kingdom before going to the factory at night.