TV Special
Description
Kokoro Akechi leads the police investigation unit Genius Four, specializing in cases involving the Gentlemen Thieves. This 13-year-old has blonde hair, stands 139 cm tall, and weighs 30 kg. Her given name "Kokoro" uses the kanji for "small" (小) and "garment" (衣), while her surname "Akechi" signifies "bright" (明) and "wisdom" (智), reflecting her proclaimed intellect.

She consistently exhibits a bossy attitude, particularly towards the Milky Holmes detectives after they lose their supernatural "Toys," frequently belittling them. She reacts aggressively to Sherlock Shellingford addressing her informally as "Kokoro-chan," striking her with a golden mask. Kokoro claims she graduated from Harvard University at age 13 and asserts an IQ of 1300, emphasizing her self-perceived intellectual superiority.

Her character draws direct inspiration from Edogawa Ranpo's fictional detective Kogoro Akechi. Within the *Tantei Opera Milky Holmes* media, she maintains a consistent presence as the sole Genius Four member appearing in the *TD* series spin-off. Her role focuses on police investigations and sustaining a competitive, antagonistic dynamic with Milky Holmes.