Kaitō U is a renowned thief causing global chaos, locked in a fierce rivalry with Oshiri Tantei. The thief possesses an infamously unpleasant personality and employs audacious, fearless methods, including sending advance warnings before thefts to boldly taunt the Wankoro Police Station. Visually, Kaitō U wears a distinctive coiled black mask and a black cloak adorned with a rose-patterned lining.