《BOOK #1》 ［ＫＡＲＭＡ ｘ ＲＥＡＤＥＲ］ (y/n) (l/n) is a girl student who has intelligence above Gakushu. Beside smart, she is great at defense too. Karasuma-sensei asked Asano Headmaster to put her in class e. But Asano headmaster don't agree. he want to put (y/n) in class a. What will happen to (y/n)? What class will she put in? What will happen if a sadistic student from class E interest with her?