Every Assassination Classroom fan knows that Koro-Sensei’s mood changes depending on the color of his face. So if you’re a true fan, what mood is he in, on this Assassination Classroom cap? The only graphic element on this cap is the premium embroidery of Koro-Sensei’s face on the front, but we’re sure you’ll love wearing this everywhere. Open at the back and adjustable for optimal comfort and wearing fit.