Strange Stories About Rules: the Strange Story About Traveling Through Time and Space and Quantifying Intelligence

You and your brother have come to a world of ghost stories, and you have to survive by constantly challenging ghost stories and battles. Each ghost story has quantified difficulty, unique original levels, and thrilling decryptions. When you encounter each of them, you find that it is not as simple as you thought. What is behind this? The ghost story has its own stories and behind-the-scenes... Or should I say, this... Is the ghost story? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.