The new Case Closed movie, Detective Conan: The Million-dollar Pentagram, shocked fans by revealing that the popular ship "KaiShin" between Kaito Kuroba and Shinichi Kudo is ruined as the characters are cousins. The film, released on April 12 in Japan, shows that Kaito and Shinichi's fathers are twins, making them family. Fans are upset, accusing the series creator of queerbaiting and profiting from their shipping hopes. This twist, similar to a previous cousin relationship in the series, has sparked debates on the ship's canon status. Despite their resemblance and shared voice actor, the reveal has disappointed many fans who enjoyed the rivals-to-lovers dynamic. The news has spread rapidly among fans, leaving them to decide how this revelation impacts their view of Case Closed's biggest ship.