'가르친 악당들이 영웅이 되었다.' is a novel that delves into the intricate journey of a protagonist teaching villains to reconnect with reality. However, the storyline takes an unexpected turn as these once-villains undergo a profound transformation, emerging as heroes who eventually reunite with the protagonist. With its focus on themes of redemption and personal growth, this Korean novel is a compelling choice for those interested in academy settings.