Hotaro tells Eru that he can come up with a plausible explanation for any situation she can think of, so when a seemingly mundane schoolwide announcement is made, she challenges him to figure out the reason behind the announcement.
Genres: Animation , Comedy , Mystery
Keywords: anime , art , based-on-light-novel , bukatsu , detective , high-school , japanese-high-school , literature , romance , school , school-club , school-life , slice-of-life , young-detective , watch-anime-series-online