Meitantei Conan OVA 06: Kieta Daiya wo Oe! Conan & Heiji VS Kid!

Synopsis

A wrong number leads to a high-stakes investigation when Conan recognizes the voice of his friend, Osaka-based high school detective Heiji. Joining forces, they race against time and the notorious thief Kaitou Kid to recover a priceless stolen jewel worth 100 million yen. The duo must outwit their rivals and apprehend the culprit before the legendary gem falls into the wrong hands.