Yeonjoo and and Gyeore successfully got away and they are on their way back to the hospice.
Upon their arrival, Mr. Kang was there, and Yeonjoo said that she'll go in first so they can talk. She also said that she needs to rest because she'll be working the night shift.
That night, the mystery behind Room 403 has been finally revealed.
It turns out that it was really Yeonjoo who has been taking care of the patient, and she's doing it for the sake of Mr. Kang.
Months ago, Yeonjoo secretly took the patient in thinking that Mr. Kang was the one who stabbed him. They didn't want him to be a murderer so they did what they can to keep him alive.
Turns out that the other staff are in it too as they also helped Yeonjoo in taking care of the patient.
But secrets don't last forever. The patient suddenly had a seizure and Yeonjoo had no choice but to call Dr. Yang for help.
After stabilizing the patient's condition, Yeonjoo then explained the whole situation to Dr. Yang.
Gyeore also overheard their conversation, and he told her that she shouldn't have tried to solve it alone.
The next morning, we see Yeonjoo having a conversation with Mr. Kang. She tried to convince him to undergo medical treatment again but Mr. Kang refused saying he's fine and he's happy.
A bit later in the episode, we see Team Genie setting off again to fulfill another patient's wish.
Everything was going fine as if they are just on a field trip.
Yeonjoo even teased Gyeore on how cute he is...
But suddenly, the episode ended with Mr. Kang fainting while they were at the rest stop.