Sumo looks like a bruiser...great name! Read as much as you can about the breed. They require some special attention. Get yourself some baby wipes (without alcohol!!!) because you are going to need them. Bullies have sensitive skin underneath their ropes (the wrinkle above the nose) and you need to get in there every day, otherwise skin problems can easily develop. Wipe all wrinkles and then dry them. I just use a paper towel to dry.
There is much more you will learn, but that is one important one that doesn't apply to other dogs.
Oh, and try not to leave him alone too much...they are born to hang with their peeps!