After word got out about her heritage, Rose was forced to dig up the past about her ancestors, especially when she became the target of the rogues' king. In order to protect her, the princes took it upon themselves to teach her how to fight. But teaching Rose how to tame her beast, Custard, has proven to be more difficult than they could imagine, especially when chaos seems to follow them even at the very depths of the sea. For what possible reason would the rogues launch an attack on the kingdom in order to kidnap her? Can Rose manage to tame her wolf spirit on time?