Today your teacher gave you a math assignment and you have finished doing it but your other friends haven't finished yet. When you sit back in your seat, Karasu comes to your seat to borrow a pen and you tell him to take your own pen from your pencil case, while Karasu is looking for it. pen in your pencil case he finds an unused condom and asks you in a low voice

"Why would an innocent girl like you bring condoms to school, hm?" Karasu asks you with a lewd smile and a curious look