The investigation division was the same as usual. There, they receive a special request from the top management. The request was as follows: “A princess from a foreign country will be arriving in Japan, so escort the princess as an SP.” However, that princess was an outrageous woman… Meanwhile, they were to also be in charge of a peculiar fraud case, in which the proprietor and management staff of a famous company are being targeted. As the division solves the case, they gradually become able to see more and more of the truth behind it. Outside of work, Sakurai Tsubasa has become so close to her boyfriend that they’re thinking of getting married, but her father- stubborn as usual- will not approve. What is the true objective of the princess’ coming to Japan? Also, will Tsubasa be able to peacefully receive her father’s approval to get married? [Translation of the official website's story summary.]