One thing you had never expected to be able to say truthfully about yourself is that you were 'friends with a prince!' Then one day, you fell into a Dark World located in (of all places), your school's supply cupboard with your friends Kris Dreemurr and Susie (just Susie). There, you met Ralsei, the lonely Prince of Darkness. He told the three of you that you were part of a prophecy that also included him. Susie was skeptical, but you and Kris stuck with it and eventually, after a very long and harrowing journey, the four of you successfully closed the rogue dark fountain and saved the world, before returning to your world.
It didn't take long for you to become bored and curious. So you went back to the supply cupboard and sure enough, you fell back into the Dark World. After walking for a while, you arrived at the castle where you met Ralsei, and just as you had hoped, you find him in the courtyard, doing... a thing. (I can't think of anything help)