Blow ～満ちた月、欠けた月～

Main character is a normal high school student. During the preparation week for the culture festival a series of rapes happens right at the school campus. Who is the culprit? What are his motives? Can you get to the truth? [From [url=https://vndbreview.blogspot.com/2017/10/vn-of-month-september-1999.html]vndbreview[/url]]