In the year of 2322, humans have already discovered aliens and confirmed their existence on the other planets other than Planet Earth. What puzzles them is a particular type of Alien, belonging to Planet of Mercury. These Aliens bear an uncanny remsemblance to planet Earth's "Humans". Curosity had gotten the better of them, they decide to nab a few "samples" to test and experiment on, to find out what exactly are they. 

D.O Kyungsoo works as one of recruited acclaimed scientists, all ready and eager to test and find out more about this interesting subject. Since the discovery of Aliens, Kyungsoo has been dreaming of being up close and personal to them. To know what exactly they were, what strange features they had that humans did not......To him, Aliens were special. 

But when he arrives, he was only informed he would be a stand-by scientist that would work along side Kim Jongdae as his replacement if Jongdae ever falls ill. So he spends half the time prepping coffee, and feeling upset why he had bothered to even sign up for such a job... he had even left home for such a long time already.

Until one day, he is placed in charge of taking care of sample #140194. 

"Hey, Kyungsoo-ah, you be in charge of that containment okay? Just dont screw up, if not the bosses will have my head."  Jongdae instructs with a serious but light hearted tone. He passes the keycard and places it securely in the trembling hands of Kyungsoo.

"Yes sir!! I will do my utmost best!!! THANK YOU JONGDAE-HYUNG! " Kyungsoo could hardly  contain his excitement. Finally! He could personally investigate the traits of aliens!! What did this specimen look like? Could he be friends with it?! He bows politely and sprints to the lab! all these months of being with Jongdae will be properly showcased to the higher ups, and Kyungsoo will make sure he wont disappoint Jongdae hyung.