With Soo's heartfelt confession, he and Helga become perfect lovers. However, witnessing Helga being used in Soo's experiment, Seungchan cannot stand idly by. He attempts to reveal the truth to Helga, along with Jiho. Meanwhile, while Soo and Helga are on a one-day trip, Helga discovers the code to Soo's hidden safe and tries to open it.
