The original course plan was to lead students to explore the transitional justice of Aboriginal people. However, after collecting different information and discussions from many parties, it gradually changed its direction and cooperated with the movie "A Letter to Grandma". In the movie, we can see Different ethnic groups on the island of Taiwan have faced the pain of persecution, historical migration and various life issues. The course turned to focus on Taiwan's white terror period. This course expects students to understand state violence against people and transitional justice, and through case discussion and guidance, students will be able to rethink the feelings and choices faced by different characters. In the art class, the teacher led the students to engage in artistic action, making template graffiti to simulate street speech, allowing students to use graphic creations to express and call on the audience to pay attention to various human rights issues.