The worst offender in the courtroom is the judge.

Michio Iruma is a former lawyer. He now works as a judge in the first criminal court (commonly known as "Ichikei") of the Tokyo District Court. He is an unusual judge. To avoid issuing wrong judgements, Michio Iruma seeks out the truth in cases by performing on-site inspections by himself. Due to this, lawyers and prosecutors are afraid of him.