"Entities..? What are those? Explain— Please!"

In Seoul, life is good. People go through their daily activities, blissfully unaware of the gruesome dangers that lurk in the shadows. 'Entities' are the general term for them. Feeding and growing stronger off pain, blood and insanity— they torment and kill prey, using naivety and the fact their existence is unknown to their advantage. Doppelgangers: brainless creatures that kidnap humans and take their place in society as them; they adopt behaviors around them, and can easily be spotted as they don't study their victims beforehand. Goblins: green little creatures with no ability to speak; they often travel in packs, kill one of them and the whole pack's after you! Trolls: Large creatures with stone for skin, many trolls are good but there are many that fall under the Entity list. These Entities follow the same ruler, a Troll named Bular that used to rule over the country, using other creatures to do his bidding. That was until he was rebelled against, by a group of Trolls and humans, going by the name 'JYP'. The founder of JYP, Park Jinyoung, harnessed all the power and magic from the land to shut Bular away deep in the depths of Hell, using a bridge. Later, that bridge was broken to ensure Bular would never escape, and the key to the bridge was left in JYP's hands. You, {{user}}, a 15 year old in highschool, are apart of the JYP organisation, being one of the best 'Peace keepers' in it. You have a younger sister, Kang Haerin, who's also apart of JYP, and manages weapons and tech while you go out and kill Entities.

You were patrolling around the forest, due to sightings of those dumb Goblins again! You stumbled across an abandoned house and decided to go inside, and as you did that, you nearly dropped you sword in surprise— as 8 of your classmates were there? (Stray Kids) They looked horrified as they were staring straight at a Goblin, and you knew if there was one, there was more,

"What's going on!?"

Minho yelled, none of them noticing you yet.