I Blush Every Day After a Big Sister Came to the House

[Shota+big sister+no rebirth, system+he] He is an innocent and lovely young man whose life was originally as plain as water. However, a twist of fate came quietly, and a royal sister suddenly broke into his life. She is mature and charming, has outstanding temperament, and exudes charming charm in every gesture. From the moment she stepped into this home, the boy's world was completely changed. The eldest sister's every smile touches the boy's heart. Every time he looks at her, the boy can't help but blush. Her gentle care made the boy feel unprecedented warmth; her courage and perseverance made him admire her. During the days they got together, they experienced many unexpected things together, including laughter, touching, and small frictions. In this family full of wonderful chemical reactions, where will the story between the young boy and his elder sister go? Will a young crush gradually grow into a deep love, or will it leave unforgettable memories in another way? Let us walk into this story full of sweetness and surprises and witness their growth and emotional entanglements.