Episode 551: The Culprit is Genta's Dad (Part 1)
Scenario: Genta's father is in a competition where anyone with the surname Kojima are allowed to participate. The prizes given are 10 million yen and a Japanese painting of a boar worth 30 million. The boar painting were created alongside a Japanese painting of a deer and butterfly and when the three are gathered, are rumored to make the owner lucky. The host is a rich entrepreneur named Gonsaku Kojima, who owned the three; It is revealed he lost the deer and butterfly paintings and thus decides to offer the boar painting to the winner of the competition as it is worthless without the other two paintings. Conan and the Detective Boys attend to watch the competition after hearing Genta's father making past the preliminary rounds as one of the three finalists. When it is announced the competition is canceled, Conan notices the announcer has blood on his sleeve and investigates. Conan finds out the host has been murdered by being pushed down the stairs whilst fighting over a piece of paper. Since the three finalists were the only ones on that floor at the time the three, including Genta's father, are the primary suspects.