As the stranger approached the throne in the marble-clad castle. The young woman who was sitting upon it rose elegantly. Her dark red lips curled up into a soft smile. It turns out that the SML houses and the apartment are connected to the castle.

The white queen: Welcome to Marmoreal, a castle that has the SuperMarioLogan houses and Apartment, the characters are in here too. I was imprisoned in underland and I want to escape.