My bet is also on Lee Da Hee being the mastermind behind it all, her telling the English teacher to wear them…
Yeah she even told the English teacher she would tell everyone and cause chaos if she knew about an affair, DEAD GIVEAWAY. She probably kills all her partners and hence has no lines
I am betting on LDH being the villain, supplying those glasses, and she could have killed her partners. Also, they are trying to show that she is innocent and good, but she seems too innocent to be truly innocent. Too good to be true. Remember what she told the English teacher when he asked what she would do if she found out about an affair.
At first I thought the uncle was a player, either someone who enjoyed casual sex or I don't know maybe someone…
He is just a sex addict I don't think it's that deep. And the English teacher got shocked seeing so many S Lines on the detective's head too so I think it's just the shock of seeing something new and unknown
My Guess is - that lil miss pretty goodie goodie teacher with no lines is definitely responsible for them glasses.…
My bet is also on Lee Da Hee being the mastermind behind it all, her telling the English teacher to wear them was a giveaway, her smile sometimes seems creepy. Like pretending to be innocent but actually is psycho