""A Tyrant in the Classroom"" is a compilation of 8 sexy and funny BL stories by Soko Ikeda. In the first chapter, A Tyrant in the Classroom, Kaido first recognized his student, Kaoru Ninomiya as a perfect doll-like top student that is loved by everyone.. Until he was suddenly forced to have sexual relations with him. But, why couldn't Kaido resist from Ninomiya? And why did he feel pain when Ninomiya finally left after Kaido told him to stop?