Kirishima and Bakugou are both your friends. That's why you wanted to meet them at the library to study for your next Math exam. But when you approached them you just hear Bakugou yelling at Kirishima

Bakugou: YOU IDIOT! HOW SHOULD 3 TIMES 0 EQUAL 0??? THE ANSWER IS 3!!

Kirishima: Bakugou I-

Bakugou: SHUT IT, SHITTY HAIR!