A high school girl named Yuuna who dreams of becoming a gyaru model is on her way to an audition when a mysterious black carriage suddenly appears and transports her to Twisted Wonderland, a strange parallel world. She wakes up enrolled at Night Raven College, a prestigious school for training magicians, and is forced to live in the decrepit Ramshackle Dorm alongside a boastful, cat-like monster named Grim who aspires to become a great mage.

After settling into school life, the winter holiday arrives. While most students return home, Yuuna and Grim are assigned by the headmage to keep the school warm by tending to fire spirits. During their rounds, they encounter Jamil Viper, the vice-warden of Scarabia Dorm. Jamil persuades them to visit Scarabia, where they meet the dorm’s warden, Kalim Al-Asim, a cheerful and wealthy heir from a powerful merchant family who owns a flying carpet.

Kalim has announced that Scarabia students will undergo intense study and training over the break, preventing them from going home. Yuuna and Grim are roped into the grueling schedule against their will. As they try to escape, they discover that Jamil has been using his unique hypnosis magic to control Kalim and manipulate the situation. Jamil, whose family has served the Al-Asim family for generations, has secretly resented his subordinate role and plans to oust Kalim and take over Scarabia. When his scheme is exposed, Jamil loses control of his emotions and magical power, triggering a dangerous overblot that threatens everyone in the dorm.

This manga adaptation of the game’s fourth chapter, Book of Scarabia, follows Yuuna and Grim as they navigate the escalating conflict between the seemingly carefree warden and his bitter vice-warden, uncovering long-buried grievances and the cost of servitude. The story emphasizes themes of class, freedom, and the struggle to be seen as an equal.