Gam man da song si

Two eccentric young men, Lung and Chi-Yeung, lead a carefree life, believing they're heroes who can save the earth. However, Lung's life is filled with disappointments, including moving out of his childhood home, his step-mother's chronic depression, and his father's annoying behavior after being released from jail. Amidst his personal struggles, a zombie outbreak occurs, caused by a monster from his favorite animation, and Lung must risk his life to rescue his friend's girlfriend and confront his own loser identity.