Yuuki Kaji Voices Detective Conan's Shuichi Akai in Flashback Set 17 Years Ago

Kaji voiced character, normally voiced by Shūichi Ikeda, in Saturday's episode

source https://www.animenewsnetwork.com/news/2021-09-20/yuuki-kaji-voices-detective-conan-shuichi-akai-in-flashback-set-17-years-ago/.177575