Yeo Eui Ju seorang siswa SMA biasa yang rata-rata dalam segala hal dan berusaha untuk tidak menonjolkan diri di sekolah. Namun pada malam hari, dia diam-diam menjadi seorang penulis, memposting novel BL khusus dewasa yang berani secara online. Terlepas dari antusiasmenya, karyanya hampir tidak mendapat perhatian. Meskipun sangat jeli dan berempati, dia selalu putus asa dalam hal percintaan di kehidupan nyata. However, her life as a writer takes an unexpected turn when four handsome new teachers arrive at her school. Among them is Ga U Su, a cold and brilliant math prodigy from a family of renowned mathematicians, who gave up studying abroad after a life-changing incident nearly cost him his vision. No Da Ju, a playful and mischievous Japanese teacher born to a wealthy family, is a gifted polyglot fluent in multiple languages and U Su’s longtime friend, despite their constant squabbling. Jung Gi Jeon, a former luge athlete forced to retire due to injury, is now a warm but clumsy sports teacher who is popular among students and sees Eui Ju as his next prodigy, recognizing her exceptional talent in running. Lastly, Yun Dong Ju is a warm-hearted and modest Korean teacher who is respectful and soft-spoken, treats his students with respect, always uses honorifics, and never loses his temper. As these four charming new teachers arrive at her school, they become her unexpected muses. Kehadiran mereka menjungkirbalikkan kehidupan sehari-hari dan tulisannya.