This is a Spamton x Fem! Reader that takes place in a different spot in time. Kris and their friends managed to find a way to merge the light and dark worlds after their first adventure in the school's supply closet, granting both worlds' citizens the ability to travel through when they wanted. Basically, if the adults actually took Kris seriously when told about the dark world lmao. If it doesn't make sense now, you may get it when you read the story hehe