PTU

A student with dark hair and green eyes sits at a desk in a classroom, resting his chin on his hand and looking out the window with a bored expression, then closes his eyes and leans back as the scene cuts to a teacher in a suit and glasses standing before a chalkboard covered in Japanese text, who turns to face the class with a surprised expression and opens his mouth to speak, before the scene cuts back to the student now sitting upright with his arms crossed and a stern look on his face.