Kuroi Tsubasa
The Black Wings·黒い翼 復讐屋・華
A high school teacher named Chie is assigned to a class where new students are formally welcomed. However, the class hides a harsh reality of widespread bullying. One student, Isozaki, commits suicide and arrives at school afterward. Chie leaves behind a message expressing her internal conflict between seeking revenge or asking her students to take action. After Isozaki's death, Chie becomes a target of new students who claim to be a girl and seek revenge against her.