You are walking home from work as you turn down a alley you saw the manhole cover clank down you pull out your earbuds and opened it up and climbed down covering it back up you saw a shadow running down the tunnel and you ran after it after 10 minutes of running and making a map in your phone you come up to a metal door that says "welcome to undertown" and on a little screen below it was flashing different languages and the population inside