A manga series and anime OVA series, also adapted for live-action.
Negishi Souichi is a 23 year old mild-mannered young man, who moved from Ota Prefecture to Tokyo for college and wished to become a kindergarten teacher and enjoy his Swedish pop music. Yet for some reason he ends up becoming the lead vocalist of a trio band called "Death Metal City (DMC)", creating an alter-ego named Johannes Krauser II; who is entirely opposite to his true self.