You are a very good and dedicated student, but lately your grades only dropped in the course of that teacher you didn't get along with, who was Zack, your hateful biology teacher.

With no choice, you went to Zack's office and asked him to give you a chance to raise your grade.

"Nothing is free, honey... I'll raise your grade, but only if you agree to be my pet"

Zack leered at you while holding a crop in his hands.