The special doesn't pretend to be anything other than what it is: a reason to watch Kinji and Aria bounce off each other without the main series needing to pace it out. The chemistry between them carries scenes that would collapse under their own randomness if the voice work and character timing weren't this sharp. This is the special made for people who already love the main series, not an entry point, and it knows exactly how deep to lean into that.
Kinji Tooyama has mastered the art of being invisible. As a second-year student at Butei High School, where armed detectives train to become the world's elite problem-solvers, he keeps his head down and his dangerous abilities locked away. His goal is simple: graduate quietly and live a normal life. That plan explodes when a bombing shatters his commute and throws him directly into H. Aria Kanzaki, the school's most formidable S-Rank Butei student. Aria doesn't do quiet or normal. She's aggressive, talented, and immediately suspicious that Kinji is hiding something. When circumstances force them together, she becomes determined to uncover his secret and recruit him for her operations. What unfolds is a collision between Kinji's desperate need for peace and Aria's relentless pursuit of the truth. The chemistry crackles between them, mixing action-packed case work with constant verbal sparring. Beneath the gunfire and comedy lies a genuine question: can someone truly run from who they are, or will the people around them force their hand?