In the world of violence, there are four most powerful families: Genovese, headed by Giotto di Bondona; Buano, Kato Akiyan; Lucchese, Christian Gesso; Colobo, Andre Figol.
In Italy, Jesso wanted to kill Kato Natsuki. Kato Natsuki and Foster came to New York (travel) in order to "escape" Jesso's pursuit. Jesso sends his men to chase him into New York and start a battle. During the battle, Foster eventually died while saving Kato Natsuki. Kato Natsuki blamed herself very much, so she conducted Spartan training. Returning to Japan (when the cherry blossoms are in bloom), she meets Yagami Sulfur. Yagami Sulfur is close to Kato Natsuki and makes things difficult for her in every possible way. He also meets Kudo Apu by chance. At the same time, Kato Natsuki discovers that Yagami Sulfur is actually Foster's twin brother, Genovese's second boss Francis Gattuso. Jesuo, who had stopped for a while, took advantage of the conflict between Kato and Yagami and started the assassination of Kato Natsuki. However, when Kato Natsuki was threatened, Yagami Sulfur Prison protected Kato Natsuki, and the prince and princess lived together from then on. Of course, Jesuo had no reason to give up, so he designed to keep Kato Natsuki close to him. Surprisingly, Jesuo not only did not do anything as unscrupulous as before, but instead told her a major secret!