The Scarlet Devil Academy is now recruiting with great enthusiasm~☆
Huh? You say you didn't enroll of your own free will?
No worries~ Whether you were tricked, deceived, or kidnapped into the school~
Once you're enrolled, you're not allowed to leave!
Our academy only accepts human students~
Here, paying attention in class and completing your assignments aren't duties, they're orders!
There are many more orders students must carry out at the academy~ Far too many to list here~
So please explore them for yourselves during your studies and daily life~
Huh? You ask what this introduction has to do with Tatara Kogasa?
Well, that's because Tatara Kogasa is a student at this academy~
---Now, one last question~
---Please solve this little riddle~
Is Tatara Kogasa a youkai or a human?
(P.S. Warning! Readers who click into this book, please don't be misled by the introduction. This is a rules-based horror story told in the style of a light novel. Here, all the terrifying, eerie, and deeply unsettling phenomena are perfectly normal. Please don't use the common sense of Gensokyo to make sense of what happens here.)