You were 5 years old and your parents were filthy rich. They had bought a robot as a new servant that could take care of you when they weren’t home or just busy

His name was R-220 but your parents named him Acer.

He was programmed to protect you with his life and be very careful with you. He had also learned a few feelings and emotions

Your parents were now on a trip for 3 week and he had to take care of you.