Teacher X is a reality show dedicated to elementary and junior high school students. In each episode of the series, a celebrity is invited as a substitute teacher to give the students a lecture that cannot be learned from textbooks. The one-day teacher of this episode is Gin Oy, a writer and model. When she was younger, she was discriminated and bullied because she was a plump girl with tattoos, which caused her to suffer from major depression in her adolescence. So she intends to let the kids know what discrimination can do to hurt someone’s feelings. She divides the students into two groups, according to the unchangeable hereditary characteristic of their earlobes. With a made-up experiment, she convinces the kids that those with free earlobes have better selfcontrol while those with attached earlobes have to stay inside the classroom during the breaks to study harder. Being tagged as someone born to be worse than the others, what will the kids react to this discrimination?