The Glory (2022)

Years after surviving horrific abuse and school violence in high school, a young woman, Moon Dong-eun, puts a meticulous revenge scheme into action. After qualifying as a primary school teacher, she secures a job as the homeroom teacher of her chief tormentor's child. One by one, she begins confronting the former perpetrators and the passive bystanders who watched her suffer, slowly dismantling their seemingly perfect lives.