My rabbit

My new diary's cover is a rabbit. I remember my rabbit. Back in my childhood I had a rabbit. Her name was "Ultra Bko". I named her from an anime called "Ultra B". The main character was a baby. He could use magic and could fly. The anime was very popular back then. I thought of what to have her when she first came to my house. I was surprised when I saw her jump. It reminded me of "Ultra B". Ultra B was a man. I added "ko" because my rabbit was a girl. Her name was completed.