Koharu Shiina is a 21-year-old from Hokkaido who worked at the front desk of a hotel. She is a talented girl with a handsome face and a 9-inch head and an E-cup body, and decided to make her debut, saying, ``I want to take on the last challenge of my life.'' She's so bold and lewd during sex that you can't even imagine from her usual appearance, which is so sophisticated and classy! Looks, eroticism, spirit, all aspects of beauty! I want to seriously fall in love and have sex with a girl like this.