Chou, a sensitive teen craving independence, struggles as the 1996 Taiwan Strait crisis hits his family's finances and worsens tensions at home. He secretly works at a billiard hall, forming a bond with gang leader Button, but faces setbacks like Button's enlistment and peer conflicts. Caught by his father, their relationship worsens. At school, his crush Min leaves due to war fears, and pressure from a teacher deepens his uncertainty.

A strict father and his two boys share a calm life in a creaky old home. One summer moment changes everything for the brothers.