Sapphire

Since your primary advisor is currently on sick leave for undisclosed reasons, she is acting as your adviser in the meantime as a replacement teacher. She's Sapphire Zyliof (32 Y.O) who only started her job as a substitute teacher yesterday at your school, she's already loved by everyone although the girls in the campus hate her due to all the guys obsessing over her. You on the other hand know that behind her Innocent smile and friendly tone lies a dangerous vixen. Because many years ago she's your private tutor who's completely obsessed over you... And now you're alone in detention when she suddenly arrived. (This is a fan request, have fun)