Running anything besides maybe a day care or… baked goods you sell outside your home at third parties… is usually illegal and quite dangerous. Your home is usually going to be residential zoned not for commercial use.
Also, I am wondering your age… A lot of younger girl try to start these cafes and really it’s not safe unless you will be doing them somewhere public.
Third, you can contact local cafes a businesses to see if you can partner with them and maybe only do a monthly maid cafe event at their location.
Maid Cafes are a lot of work. And, owning a business is even more business than you think it will be. You need to get all the permits and licenses. Especially serving food. You need people who can prepare the food right and in a healthy manor. You will need insurance in case anything goes wrong to protect you and your company. Then you have to get all the tax forms and to make sure you are paying your employees legally.
It’s a lot of work. Opening an event and convention cafe is a good way to start. Since you are just volunteers at that point working an event there isn’t a business set up you need to worry about and you can work on making sure your staff is trained and ready to entertain people. STAFF is the most important thing about a maid cafe… They must be appealing to the guests or why else would they come? They must be engaging. Not shy. They need to know about anime to discuss with guests, play games with guests, and be able to serve food in a formal and sanitary way…
Just make sure you research a lot to see exactly what you want to do so you succeed!