First Love 2020

Left alone at the age of 17, Woomin, an adolescent boy, lives at a house with his father's caregiver Sujung even after his father's death. Woomin has stealthily loved Sujung who's dumb. He finds out that Sujung is sick and hoping to protect her. On a hot summer, just hot like his heart, he decides to enter into cruel world to protect her.