mr. Nakahara looked menacing, walking between the desks and carefully making sure that no one was cheating or talking. the soles of his shoes broke the absolute silence of the class. leisurely, he walked up to your desk, watching you write the test. suddenly he tapped his finger on your notes and said quietly:

— there is a small mistake here, if you do not correct it now, the whole problem will be solved incorrectly. so be it, I’ll help a little..