Monica Everett, the powerful but incredibly shy mage, just wants to carry out her mission to guard the second prince in secret. Yet her dreams are shattered when the prince takes notice of her talent with numbers...and appoints her to be the student council’s accountant! Now she must not only deal with envious students but also receive instruction from the icy Cyril. However, behind her instructor’s cold exterior lies a secret—one that only the Silent Witch can resolve...

Out of the frying pan and into the fire!? Monika, the Silent Witch and one of the seven sages, has successfully infiltrated the academy and joined the student council. In doing so, she discovers the accomplice who had helped Aaron O’Brien embezzle the student council funds, and she leaps into action to pursue them. But after driving them back with a brilliant magical formula, a new obstacle stands in her way! Can this shut-in genius witch get by without revealing her true identity...!?

Monica Everett is the Silent Witch, the only mage in the world who has mastered the art of unchanted mage craft. But Monica hides a secret: There a son she learned to use magic without speaking is merely because of her extreme shyness. Until now, she’s been content living a peaceful life hidden away in the mountains, but an unexpected visit from a colleague brings her a task more daunting than any other. Now, it’s up to the world’s shiest mage to infiltrate an academy and protect the second prince from danger...without letting her fears get to her!

Monica, the Silent Witch, has infiltrated Serendia Academy on a top-secret mission to protect the second prince. So far, she's been appointed accountant of the student council and things are going great! ...Or so she thought. With her former mentor arriving at the academy and her over-powered magic under the microscope, Monica is struggling to keep her identity hidden. As if social dances and tea parties weren't terrifying enough. And now, with a new danger closing in on the prince, will Monica reach her breaking point?

Danger and Daring at the School Festival! Despite the threat uncovered at the chess competition, plans for the school festival and Felix’s big debut remain unchanged, making Monica’s mission to protect him more important than ever. Luckily, self-proclaimed villainess Isabelle and fellow sage Louis Miller are here to help. But then, on the morning of the festival, Monica learns there’s a cursed tool somewhere in the academy! Protecting the prince, retrieving a dangerous item, and maintaining her secret identity—can Monica make it through her first and only school festival in one piece?!

Spirits, ghosts, curses, and charms! The school festival may be over, but a series of mysterious happenings around the academy promises to keep Monica and the rest of the student council busy. As winter break approaches, food begins to disappear, a lost girl turns up at school, students start seeing ghostly balls of fire, and the second prince becomes the target of a dubious charm. Whether the trouble is big or small, Detective Monica and her mystery novel–obsessed familiar, Nero, will get to the bottom of it with help from their friends and a little unchanted magecraft!

Monica Movalette, the Silent Witch, is the world's only practitioner of Voiceless Magic, but also very shy, so when she is assigned a secret mission guarding the Second Prince, she must contend with both social interaction and the evils targeting the young royal.