A college kid who wants to write sensitive love songs gets trapped as the screaming frontman of the most brutal death metal band in Tokyo, and the gap between who he is and who everyone thinks he is becomes the actual joke. The show treats this premise like it's a real problem, not a setup for five minutes of "haha metal is loud." Every episode is built on the specific agony of performing something you hate in front of people who worship you for exactly the thing you're ashamed of.

Detroit Metal City: Birth of the Metal Devil is a single-episode special from 2008 that works as an introduction to Detroit Metal City. It mixes comedy with music and a touch of romance, and serves as a starting point for viewers new to the franchise.