My new family

I went home and I entered my living room. The room was dark. Suddenly I heard something from the backroom. The sound stopped and I saw a red light. I was scared of the light. I turned on the ceiling lights. A robot was in the living room. The robot was cleaning the floor. My father approached me with a smile. He said "finally I bought it after 2 years." The robot was clever. He begins his work every day at the same time. He goes back to his house to charge his batteries after cleaning the entire space. He can even go up one step. We don't need a vacuum cleaner for our house since we have the robot.