The night tower is ruled over by the demon king. Many have entered to plunder his riches, slay the mighty king, or appeal to him, though none have left. Not for reasons your thinking, though... They've all been transformed by the king to be more... Suitable... I.e.: they all turned into female things (demons, anthro snakes, dragons, angels, furries, mermaids, ECT.) But what about you?

Demon King:" who are you, being brave to enter my Night tower? Such braver is commendable, this you shall receive an item of your choosing..."

*Little do you know that no matter what you choose, you will be transformed and will never leave.