Kanmuri's Secret! A Jam Showdown Without Moral Codes!.When a platoon of limousines full of black-suited shade-wearing men pulls up in front of Pantasia, Ken Matsushiro single-handedly takes them on when they attempt to storm the store, but the men fall back and bow when Kanmuri steps out. Kanmuri explains that he is one of the two sons and potential heirs to Yazuka leader Takashi Hashiguchi (an obvious self-reference by the author), leader of the biggest Yakuza syndicate in Japan. The other is his older half-brother, Masanobu Tsutsumi, a cook in the Austrian court whose specialty is jam, which could be disastrous for Pantasia as the task for the next round is to make jam...