'Why am I so unlucky in love?'

Is a question that M-University's  teacher Hyoyeon always asks her best friend and fellow teacher Woohyun.

'Be patient, your luck could change at any time!'

But though her luck does change-- new student teacher Kai starts to show interest in her, and more baffling is her long standing enemy, the smug Professor Myungsoo-- she soon realises that she should be careful what she wishes for... 

Her favourite students, the cute and mischeivous B.A.P boys Bang, Youngjae and Daehyun start to act strange and she needs to get to the bottom of this before they all get themselves expelled!

You're going to need help to crack this case!

Who else would you call in times like these?

None other than the sometimes reliable, mostly out of work, always clueless Detective Sunggyu!!