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

The Idol Girl in My Class Is Acting Suspiciously, My classmate Shion Saegusa was idol. but she is unsure of behavior in front of me., クラスメイトの元アイドルが、とにかく挙動不審なんです。

Miss Saegusa, who left her career as an idol after entering high school, possesses good looks and intellect. She consistently exhibits a lively and amicable demeanor, earning her the reputation of being the most well-liked individual at her school. On the other hand, Takuya has become privy to a different facet of Miss Saegusa's character. Meanwhile, today, at his part-time job at a convenience store, Takuya encounters a woman with a questionable appearance and attire. There is a strong possibility that this woman is none other than Miss Saegusa-san...?