A kid goes missing from school ,11

A new teacher named Shini joined her school as a teacher of mathematics. She had the record of leaving 20 or more schools in the past.

Erica's highschool , Morning bell , had seen the missing of a 2nd grader kid last week .

Two hostlers went to bathroom and found blood in the bucket.

One of the hostel girl found herself outside the building as she woke up in the morning.

All these events took place after this new teacher joined the school.

(who is this new teacher, and why are all these taking place after her embarkment?