Detective Conan: Shinichi Kudo's Written Challenge

Shinichi and Ran in disguise, accompanied by Inspector Takagi, spy on Kogoro flirting with the hostesses at the Cristiano cabaret club. Kogoro and variety show educator Masato Mine are invited to participate in one of the club's games in which the men receive kisses on the cheek from 19 of the hostesses while a decanter of wine is filled and the grand prize is a kiss from lead hostess Kumi Amagi. Mine wins the game, so Kumi drinks his decanter of wine and prepares to kiss him, only to collapse to the floor dead instead. How did the murderer ensure Kumi would end up with the poison? Was the game truly luck, or can Shinichi reveal the secret behind winning the game and catch the murderer?