Edogawa Conan Shissou Jiken: Shijou Saiaku no Futsukakan
The Disappearance of Conan Edogawa: The Worst Two Days in History, 名探偵コナン 江戸川コナン失踪事件～史上最悪の二日間～
Overview
The anime special celebrates the 20th anniversary of Gosho Aoyama's original manga, and it recounts a previously untold story from Conan's past.
(Source: ANN)
