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.

The closer Bong-seok grows to Hui-soo, the more risk of exposure he draws

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

Jeon Gye-do's past is revealed. The NIS finds out information about Frank.