Every class has someone who functions as background — noticed by no one, important to no narrative, essentially invisible. In this class, that person is Hagakure Yuzuru. In the real world, he is a completely unremarkable student. Online, under the name Yuzuriha Gakuto, he has built genuine popularity as a virtual performer, and that identity is the thing he values most. The day a famous classmate, Kiraboshi Runa, discovers who Gakuto actually is marks what Yuzuru expects to be the beginning of exploitation — blackmail, most likely. Her actual request, delivered with complete sincerity, is to become his apprentice. It is not what he expected, and it changes the shape of everything.