Maico is Japan's newest radio DJ. When she is not working, she must fend off assassins, crazed fans, and a couple of office workers as well. She believes she was created simply to be the perfect DJ. What she does not know is that she is actually a sexdroid—a robot specifically designed for sex. However, her creator, Otari Masudamasu, wanted her to be as close to human as possible and not a sex toy. Maico has never had sex and is shy at times. She constantly learns about love and matters of the heart. She later meets another sexdroid, Rei, Masudamasu’s first android, who is designed to resemble his late sister. After saving her from her evil controllers, who only used her to try to destroy Maico and as a sex toy, she and Maico become crime-fighting DJs called Cherry-Bombs.