Classmate no Moto Idol ga, Tonikaku Kyodou Fushin nan desu.

Saegusa left her career as an idol behind when she entered high school, yet she remains effortlessly captivating. Beautiful, intelligent, and perpetually cheerful, she quickly became the most beloved student on campus. To everyone around her, she is the picture of perfection—a refined and approachable young woman who brightens every room she enters. However, her classmate Takuya has glimpsed a side of the elegant Miss Saegusa that no one else at school seems to notice. While working his part-time shift at a local convenience store, he frequently encounters a highly suspicious woman wearing a remarkably unconvincing disguise. Her attempts to blend in are so clumsy and bizarre that they only draw more attention to her peculiar behavior. Despite her efforts to remain incognito, Takuya cannot shake the growing certainty that this strange, lurking customer is none other than his seemingly flawless classmate. The stark contrast between the radiant idol-turned-school-star and the shady figure haunting the convenience store aisles leaves him with an unsettling question: could this dubious woman truly be the real Saegusa?