Alt. title: Dear Door; 디어 도어
While in pursuit of criminals, a police officer has an unexpected encounter with a rather uncanny demon. Barely surviving the incident, Do Gyeong Joon is left staring after the retreating form of the mysterious creature in bafflement. However, not long after this the two meet again when the demon crashes into Do Gyeong Joon’s apartment, saying: “Hurry up! I need to get inside of you”…!?
– chapter 4