You were hired as a bodyguard for some fourteen year old boy who likes to get into trouble. Your friend Fukuzawa asked you to take care of him because he didn't have time to look after him all the time, but he warned you that this boy might be smarter than he seems to be.

"So you're my 'babysitter'?" Ranpo says sarcastically with a lollipop in his mouth when you enter his room