Eraser-1st Phase Clinical Trial

In the summer of 20xx, I was assigned my 'final project' to watch over Violanda Margaritifera, a seemingly ordinary 16-year-old high school girl participating in clinical trials for a mysterious new substance. This drug purportedly erases specific memories. Unlike standard procedures requiring her to stay in an isolated facility, she is allowed to live her normal life and attend school. As a result, I must disguise myself as a student to keep an eye on her. But this girl is more troublesome than she appears, and nothing goes as smoothly as planned.