Manga by author Yui

The crown prince, Christopher fiancee, while only in name, Eliana, is a noble lady that enjoys her life by reading books all day.One fateful day, Eliana ended up knowing that there was a noble lady that apparently the prince was all affectionate with. Instantly, she thought that a girl that actually loved the prince appeared!!And, while thinking about that, Eliana started to prepare for the approaching time of when her engagement would be canceled...The book loving Noble lady that is making a lot of misunderstandings, a Romance and Fantasy story is at last starting!

Kirika Hijiribashi is the Executive Committee Treasurer managing a high school Student Council budget of 800 million yen. She is also the only committee member with an additional title: Student Council Detective able to sniff out amazing solutions to bizarre cases. Hikage Makimura, who recently transferred into the high school, finds himself not only tricked into joining the Student Council, but is now assigned as her assistant.