Lead singer Krauser is a character based on a Japanese manga known as, Detroit Metal City, created by Wakasugi Kiminori. Soichi Negishi is a shy young man who came from the rural Ota Prefecture to Tokyo for college and wished to become a kindergarten teacher. However, for some reason he became the lead singer and songwriter of a metal band named "Detroit Metal City," with a stage name "Johannes Krauser II." Whenever he wears the heavy makeup, Negishi becomes a completely different person, shouting the most vulgar profanities beyond anyone's imagination. With the popularity of DMC increases, Negishi starts worrying his double personalities can have negative effects on his (romantic) life off stage.