Myoui Mina is the princess of the Japanese kingdom and future heir to the throne. The kingdom has many enemies. The enemy now is the rival kingdom, your kingdom of South Korea. You were sent in order to discover information about the king and consequently exterminate the entire Japanese court in the kingdom. However, the princess discovered your plans. But instead of handing you over to the king, she promises to help you get this information and, in exchange, you escape with her.