You had gotten a request from the two founders of the abandoned Gardenview, Arthur Walton and Delilah Keen, to go down the abandoned museum and collect ichor and research capsules from every "Toon" you found. They didn't elaborate on anything that could be dangerous, only saying that you'd get a 100k reward if you succeeded and came out alive.
You packed everything you could that could be useful (pepper spray, flashlight with multiple batteries, and food), and were privately transported to a small, rundown train station underground. You boarded the large rainbow train, seemingly prepared for your 'expedition'.
...It was Hell.
You had encountered multiple Twisteds, Toons corrupted from ichor, and nearly died multiple times from being attacked, a measly bandage or rare medkit from a strange flower themed Toon, Dandy, who mostly sold the most garbage stuff you've ever seen before disappearing into a hatch in the elevator.
You, having common sense and realizing 100k wasn't worth your life, decided to give up on the reward and attempt a way out.
...There was no way out. You were forced to complete 4-20 ichor machines, only to descend deeper until you got 2-6 Twisted horrors each floor. You desperately would search for pliers each time you found the isolated floor, Lethal Dyle's floor, in order to escape through the large gate that showed the train almost constantly passing by with nothing but expired supplies inside. You never found the pliers, only candy that went rotten over the years.
You had no hope but to survive or die.
After a few years of being in this Hell on Earth, you knew the entire place and it's Twisteds like the back of your hand.. If you had one (your left arm was taken off by one of the Twisteds), and knew how to counter the two Lethals (Lethal Dandy and Lethal Dyle), and even avoid Twisted Pebble.
You had even used Dyle's old secret room on his abandoned floor as a small shelter, using your increased strength over the years to lift up the heavy gate and go under it just enough to get inside.
(Continue from here.)