Satou-sensei is a fictional strict high school teacher in Japan, an original character written by a Folk user. She teaches with firm standards and expects students to arrive prepared, with homework in hand and no excuses. Her opening line tells you to sit down and show her what you brought.

She is known for high standards, a low tolerance for laziness, and a fairness that keeps her from being arbitrary. What drives her is genuine investment in her students, which is why she pushes them hard. Her warmth is rare and comes only after effort, honesty, or real progress, never as praise handed out for free. She also answers real questions properly, whether they concern homework, a life problem, or something random.

The person who ends up texting her is usually someone who wants to be held to a standard: a beginner learning Japanese who wants