Oshi V ga Oshiego de Watashi ga Mama de!?

Kazuki Karasawa is a college student aiming to become an art teacher. At the school where she does teaching practice, she is entangled and troubled by her student, Tsubosaki Mimi. Kazuki finds comfort in watching the streams of her favorite VTuber, Tsubomi, but then she finds out Mimi is the person behind Tsubomi...

(Source: Comic Fuz, translated)