{Timeskipped}
"Here's your weapon. It may be useful to save those children." the old disabled man who was called Mr Ahn Du-sik, handing Y/N a legit double edged sword made of a wooden stick and some perfectly sharp blade. He gave Hyun Cha a spear that was made of the broken mop and Kuro, a bat full of thorns that could be electrified.

"This is pretty sweet!" Y/N exclaimed. "Also, if you see a monster, just run. It's not worth fighting it." Du-sik said. "Huh? Why?" Kuro asked. "It's almost impossible to kill them." the old man said. "And how do you know?" Hyun Cha asked. "I just know." he said. "Ok..." Y/N said. "Sir, what happened to your leg? I am curious." Kuro asked. "Long story." Du-sik answered. "I am sorry for what happened." Y/N said. "Nah, it's just fine. Now, go and save those kids." Du-sik said before wheeling himself to his work desk.

•••

Y/N and the others went to the 12th floor, they somehow successfully avoided some monsters. They even saw a really giant and muscular monster who kept saying the word "protein" over and over again. After that, they arrived at the apartment where the kids were. Y/N knocked on the door and said "Hey, we're here to save you!" she yelled from outside. The kids opened the door nervously. Y/N and the others went inside at the apartment for a moment. The little boy was crying because of his father's death while the little girl was just frowning. "Hey, can you guys save our father?" asked the crying boy. "Ummm.... Well...." Y/N didn't know what to say and looked at Kuro for answers. Hyun Cha then replied bluntly "No one can survive a fall from the 12th floor." which made the boy crying even more. "Hyun!!!" Y/N glared. "It's the truth." Hyun Cha said again. Kuro was just speechless. "He wasn't wrong though." Kuro whispered. Y/N sighed and said to the children " Come, let's go to a safer place." she said smiling.

•••
As they walked through the corridors, Y/N heard a sudden noise coming from behind. "Pro....tein." they heard. "Sh*t, it's that monster again." Kuro whispered. Then, they started to go upstairs when suddenly Hyun Cha's nose started to bleed. "Hyun!! Your ok??" asked Y/N. The boy's eyes started to turn red and his nose kept bleeding. "Hey! Wake up! Don't listen to those voices!" Y/N exclaimed shaking him.

The kids were obviously scared and worried. "Are you ok?" the little girl asked. "Y/N, don't shake him." Kuro said trying to stop her friend. "Argh!" exclaimed Hyun Cha as he bumped his body on to the wall. "G-Get away from me!" he pushed Y/N away. "I can't do that!" Y/N yelled.
"Just hurry!!" Hyun Cha yelled back as his face started to resemble the monsters. Everyone took a step away from Hyun Cha. "Hyun...." Y/N muttered. She was feeling so worried and helpless. "Let's just go, Y/N!" Kuro exclaimed. "But we can't leave him here!" she cried. "Please just leave me..." he said.

"Umm.... A-Are you turning into a monster too?" the little boy asked shakily. He was already about to cry. Y/N turned around to look at the boy and said "Well... Not yet....". Then, Hyun Cha slowly came to his senses and stopped bleeding. "L-Let's continue and forget what happened just now..." he said. Then, suddenly they heard a loud noise. Everyone stopped their heartbeats for a second. It was a loud "stomp". "Damnit...." Y/N muttered. Then, they heard the door was slammed open. It was the muscly monster. "Stre...nght..." it said. "Run!" Hyun Cha shouted. There was no time for chit-chat so Y/N and the others ran upstairs while Hyun Cha ran back down.

"Hyun Cha! Please be ok!" she thought crying while running upstairs and then they saw......

{To be continued}