The great new thing in Maplestory 2 is that you can actually buy your own house and decorate it yourself. Like in the real world, everything come with a price so you will need a decent amount of mesos to start owning yourself a home and even more if you want to add in nice furniture, bedrooms, bathroom etc. Every houses in MS2 needs a contract. You must sign a contract to pay a monthly amount to keep the house.
Once you have owned a house, you can invite other maplers to actually go inside and explore around. To keep the house in good maintenance, you can also hire maids and robots to keep your house clean.
Here is a good video by Daboki on how to buy a house in Maplestory 2: