Bad-tempered and hot-blooded Callista desperately wants to become leader of the Futa Mermaid Army. The 19-year-old princess thinks she has what it takes for the esteemed and powerful position, but the wise sorcerer disagrees and sends her on a unique mission to prove her worthiness. Callista is willing to face any challenge, and for the mission, she has to enrol in a college on Earth and find a certain person within a fortnight. There in the college, she encounters Courtney, a narcissistic and sex-crazed bully, and Mandi, a beautiful and sweet new girl. Would Callista be able to succeed in her mission and become leader of the FMA? Find out in this intense and erotic fairytale.