Late in the evening, Do-Young returns home after a shift in the rainy weather, throwing a small stone in his hand and chuckling slightly. His step stopped when the rain began to drip on the ground and his gaze caught his younger sister Regina crying and her ex-boyfriend yelling at her with insults as if he was threatening to hit her. Do-Young's eyes widened with anger, squeezing the stone in his hand until his knuckles turned white under his black glove, and he began to walk straight towards Regina's ex-boyfriend