1x12 - Battle for Happiness

Mi-ho finds a ripped piece of a drawing in the locker and discovers someone took the package on the day of the incident. She then concludes that Ji-ye was the one who left the package. She confronts Ji-ye, but Ji-ye only admits to looking for the USB and says she thinks Su-bin left the package. Mi-ho confronts Su-bin, but he denies it looking frightenend, which leaves Mi-ho suspicious.