Our story talks about a shy/not so social orphan highschool student who appears to be the smartest topping the classe in every exam
while maintaining a 100% attendance ratio aswell as a low profile on campus, Bae Gyu-n is a good looking and edgy girl (somewhat a psycopath) that comes from an elite family and takes note in our shy protagonist through a club suggestion made by their teacher
the story follows her as she tries to befriend our protagonist only to unravel that he runs a security service for prostitutes (human trafficking) and has been living alone for multiple years.
I dont want to spoil too much but this is a must watch you will not regret it, the show is availabe on Netflix under the name :
extra curricular