One fateful day, things escalate when Satou runs into Kojima in the restroom, leading them to share an intimate encounter that makes his imagination run wild for days after. Sigue esta comedia erótica de amor sobre sus contratiempos a lo largo de sus vidas diarias y cómo Ichirou y Kana eligen manejarlos. Kojima is Satous Japanese language teacher with a reputation for being so ruthless that even school delinquents bow down to her. Ichirou Satou, de 17 años, es un adolescente promedio que siempre se encuentra en situaciones pervertidas con su maestra, Kana Kojima. Second year high school student Ichirou Satou has always been an average person-that is, until he runs into some not-so-average situations with his teacher, Kana The Demon Kojima. O anime foca em 4 casais diferentes, cada um formado por um aluno (a) e um professor (a).
Nande Koko ni Sensei ga? follows the daily life of Satou and his teacher as they continue to meet under similar conditions, growing ever closer with each encounter.
Kojima is Satou's Japanese language teacher with a reputation for being so ruthless that even school delinquents bow down to her. Second year high school student Ichirou Satou has always been an average person-that is, until he runs into some not-so-average situations with his teacher, Kana 'The Demon' Kojima.