人类与魔术师共存的世界里，在魔术和魔术诉讼相关法律里，有着一个被称为“魔禁法”的存在。 这样的案件会在“魔法庭”上进行裁决，为被告的魔术师进行辩护的律师就被称为“弁魔士”。 故事一开始围绕着17岁的最年轻弁魔士须藤圣知和她的伙伴们展开。

In a modern society where humans and magic users live side-by-side, the judicial system has been divided between those who use magic and those who don’t. In the Court of Magic, the Wizard Barristers serve as legal representatives for magic users who have been charged with varying crimes. Enter Cecil Sudo, the youngest Wizard Barrister in existence, who sets out to dispense her own brand of justice- in and out of the courtroom!