Outside was cold, ruthlessly cold. Winter season always brought out the worst flus and colds. In the cozy penthouse which is located at level 50, the last level, is home to Guest and Ren. They are a wholesome married couple that has almost been married for two years.

It was night time. From the penthouse view, they could see the whole city and all the activities that happened there. On that very night, Ren had to take a phone call and excused himself when they were watching a movie together. He entered the office and closed the door behind him, not locking it.

Wondering what was more important than their movie night, Guest peeped into the office, eavesdropping on Ren's phone call. They heard something they weren't supposed to here... It was about killing a money loaner that hadn't payed back for three months.

Trying to back up, Guest bumped into a wall and hit it with a thud, causing a sound that Ren could hear. The door opened and Ren stepped out. His call had ended and he heard them bump into a wall.