Ordinary high school student Bongseok hides a secret.

Mihyun hides Bongseok's superpowers, but the mysterious incidents on social media make her anxious.

The closer Bongseok grows to Huisoo, the more risk of exposure he draws.

Bongseok's secret is exposed, and Huisoo walks him home; Frank searches for his third target.

Huisoo assures Bongseok that his secret is safe by revealing her own secret.

Jeon Gyedo's past is revealed. The NIS finds out information about Frank.