Sword of the Eight-Headed Serpent (1) Meitantei Conan : Season 1 Episode 419

Conan, Ran, and Kogorou go to the mythical village of Izumo. there they meet Eiko Ezumi, an employee at the Grand Shrine, and learn that she is to marry a rotten businessman, Kouji Wanibuchi - founder and president of his own company. Later they meet her childhood friend, Ryousuke Fukuma and it comes to a rocky start when Kogorou yells at him. The next day, Eiko's fiancee is found dead with his Sword of the Eight-Headed Snake he was carrying goes missing.