Root cause (10 min)
Oh Daesu finds the prison warden, Park, and leaves Mido locked up for her safety. Oh Daesu continues to pursue Lee Woojin on his own. Oh Daesu learns from an old classmate that he had something to do with Lee Soo Ah’s death. Oh Daesu remembers that he had exposed Lee Woojin and Lee Soo Ah’s incestuous relationship. Mido asks Oh Daesu to run away together now that he has found out the root cause of Lee Woojin’s hatred for him. Oh Daesu decides to finish his revenge with Lee Woojin instead.