Case Closed: Countdown to Heaven (2001) on Netflix

Plot summary

Conan Edogawa and the Detective Boys are camping when they spot Mount Fuji and the Nishitamashi Twin Towers. They take a tour of the towers, where Ran Mouri, Kogoro Mouri and Sonoko Suzuki join them; the owner, Mio Tokiwa, is a college friend of Kogoro. Secretary Chinami Sawaguchi shows them the showroom and game room, and they meet the executive Yoshiaki Hara. Tokiwa introduces the artist Hosui Kisaragi, the councilman Iwamatsu Oki and the architect Hidehiko Kazama. That night Oki is stabbed, a broken sake cup beside him. Gin and Vodka are hunting Ai Haibara.