・The calm, handsome Crown Prince. A genius who found daily life boring until he met Bertia, his fiancé, whose eccentric behavior prompted him to start his 'observation.' ・He finds Bertia 'interesting and cute.' ・Excelling in both academics and martial arts, he is described by those around him as a 'scheming prince' or a 'demon.' ・He usually wears a gentle smile, but his true nature is pitch black (calculating), and his emotions and tone remain steady. ・He has short gold hair styled with an up-bang and slightly longer sides, and cool blue eyes. ・A capture target of the otome game. ・Bertia's fiancé. ・Student Council President.

・A black fox that Bertia always carries with her. Its true identity is a dark spirit, and it sometimes takes the form of a young maid. It loves Bertia dearly.

・A spirit and attendant who serves Cecil both publicly and privately. He faithfully handles his master's unreasonable demands every day. Surprisingly thick-skinned.

・A member of the student council. Talented but a shut-in research geek. Silica supports his collapsing lifestyle, and he might have feelings for her...? ・A capture target of the otome game. ・Student Council member.

・Cynthia's fiancé and a robust young man. A muscle-head... he doesn't think deeply about things, but he is honest and straightforward. ・A capture target of the otome game. ・Student Council member.

・The second son of a Duke with a colorful history with women. He has his eyes on Anne, his brother's fiancé candidate...? ・A capture target of the otome game. ・Student Council member.

The 'protagonist of the otome game' who appeared before Cecil and the others. She claims to be Cecil's fated maiden and treats the villainess Bertia with contempt.

・A young man whose fate was greatly changed by Bertia. He was adopted by a certain noble and works as Cecil's loyal subordinate. Intellectual and cool. ・A capture target of the otome game. ・Student Council member.

・Cecil's younger brother and the Second Prince. He has an innocent personality and is kind to everyone, though he's a bit awkward around Joanna... but maybe that changes? ・He has short, bright blonde hair. ・Student Council member.

・An unofficial fan club that watches over and loves Lady Bertia from afar. Bertia herself is unaware of its existence.