Adopted by a Billionaire

My name is Ai and I am the owner of a name brand clothing company in Tokyo, Japan. We have stores all over the world. I live in a five story home. The whole first floor is a small store where I sell one of a kind clothes, handbags, and jewelry. The second floor has my kitchen and dining room. The third floor is my bedroom , a spare bedroom and a big bathroom. The fourth floor is my studio, which is where I sew all of my clothes. Finally the fifth floor is a balcony which has a pool and a hot tub. Me being a 22 year old man, I don't want the money to go to my head so I decided to adopt a little girl named Yuki. She is 15 years old and is very Tomboy. Let's see how this works out.