Synopsis：The brother's mother was in the old apartment near the campus, wearing a simple business suit, but her curves were faintly visible under the fabric. The setting sun filtered in through the gaps in the curtains, reflecting a soft light on her mature skin. She stared at her brother standing beside her, her eyes filled with warmth and tension that only adults could understand. The air is filled with the faint smell of perfume intertwined with the breath of youth. The books in the corner and the noise of the playground outside the window remind them that this is both a campus and a secret space for them to get along privately.