Genkaku Cool Na Sensei Ga Aheboteochi Upd -

The series takes place in a fictional world where a comprehensive dictionary called "Daitokai" is being compiled. Kaito Yagami, the main protagonist, is a high school student who becomes involved with the compilation of this dictionary. He meets a mysterious and charismatic scholar named Akira Kaji, who becomes his mentor and guide in the world of lexicography.