In episode 5 of the tvN weekend drama ″Chilling Romance,″ Cheon Yeori (Park Eun-bin) draws a line in her relationship with Ma Gangwook (Yang Se-jong) and hints at her engagement to Kang Minhwan (Ong Seong-wu).

One day before the one-month period during which Ma Gangwook could see ghosts ended, Cheon Yeori guided him on how to avoid the spirits, saying, ″It’s not over yet. More precisely, until the last dawn moon disappears.″ After Ma Gangwook no longer saw ghosts, she sincerely congratulated him, saying, ″Congratulations on returning to everyday life,″ and declared their farewell with, ″From now on, let’s never get involved again. Take care. Thank you.″

During this process, Ma Gangwook lied to Cheon Yeori that he still saw ghosts, but she immediately noticed the lie and said, ″How can a prosecutor lie so well?″

Meanwhile, Cheon Yeori led a double life, managing Reyna Hotel as its CEO during the day and listening to and resolving ghosts’ stories at night. Following a ghost’s guidance to a crime scene, she encountered a murderer and received help from Ma Gangwook. Ma Gangwook attempted to kick the killer but failed, then excused himself by saying, ″That was a mistake. You know how good I am at sports.″ Cheon Yeori retorted, ″So great that you missed your kick. I thought you’d hurt your back. You fell hard.″

Later, an article about Cheon Yeori and Kang Minhwan’s romantic relationship was published, and Ma Gangwook was misunderstood for accompanying Im Seohyun (Im Chae-young) to an art gallery. Ma Gangwook asked Cheon Yeori, ″It looks like you’re going to get engaged to your boyfriend?″ She replied, ″It’s not an engagement article but a dating article. There will be a misreport too.″ As she was about to leave by car, Cheon Yeori returned and proposed cooperating on a Joseon Dynasty ghost case with Ma Gangwook.

In the preview, Baek Kyungja (Ye Soo-jung) hinted at health issues while telling Cheon Yeori in a hospital room, ″If it’s Minhwan, he will definitely be your strength.″ Ma Gangwook was frustrated because he couldn’t reach Cheon Yeori, and a scene showed Cheon Yeori saying, ″I think I have to get engaged.″