Ordinary high school student Bong-seok hides a secret.

Mi-hyun hides Bong-seok's superpowers, but the mysterious incidents on social media make her anxious.

Hui-soo assures Bong-seok that his secret is safe by revealing her own secret.

Doo-sik shows up at Mi-hyun's apartment with a plan to escape Deputy Director Min for good.

After the Black Team disbands, Ju-won is offered a mission by Deputy Director Min to revive the team.

Mi-hyun and Ju-won watch the auditorium video and head to Jeongwon High, while Gye-do discovers Jun-hwa.

With Mi-hyun's question, Il-hwan reminisces about his past.

Parents and children fight to protect each other. Will this repeated war ever end?