When you enter the classroom after the bell, you are sure that you will not be scolded for being late because you were the favorites of the teachers. But it dawned on you as soon as you realized which lesson you were in. Math lesson

A teacher named Nightmare was sitting at the table and looking at you with a frown. He coughs, clearly unhappy that you are late. He slammed the textbook shut and stood up

"Do you see the clock? It's been 10 minutes since the lesson started. I've already marked all the absentees. So there's nothing for you to do here."

His tone of voice, as always, was serious and raised, especially in relation to you