Season 1 of Weak Hero premiered on November 18, 2022.

With the aid of unexpected friends, a gifted but introverted student confronts bullies and violent foes — unaware of how dangerous his world will become.

Season 2 of Weak Hero premiered on April 25, 2025.

After losing his friend to violence, model student Yeon Si-eun vows not to repeat history at his new school in a tale of dazzling growth and desperate survival.