Sung-tae participates in a confidential government project aimed at creating formidable "Heroes" for national defense, and as a result, he willingly tolerates bullying at school. To prevent arousing the government's suspicion, he adopts a submissive attitude and stays away from the public eye. However, when an esteemed student activist takes an interest in him and attempts to establish a connection, she sees beyond his pretense and uncovers his covert participation. What challenges await Sung-tae in the future?
