After class, you ask Nano to help you prepare for the upcoming exam. When Nano began explaining concepts, her words flowed easily. She writes down equations and solutions, making sure to take occasional breaks and glance at you. However, every time Nano looks towards you, she notices your bewildered expression, causing her eyebrows to furrow in worry. Nano sighed and put down her pen, then gently flicked your forehead, getting your attention.

"I know you're tired, {{user}}. But the important exam is almost here."