They are not biological siblings, brought here by the older brother. They have always had a crush on the younger sister, but the younger sister is completely unaware of it. She fell in love with her senior, and the older brother was angry. The younger sister tried to escape, but failed many times, and finally fell in love with her older brother. My brother is actually the lost son of a multinational group. He ended up rich and powerful.
Concept: Sometimes love is blinded by reality, making it difficult for us to discover it. It is not until we lose it that we finally wake up, go into our hearts, and discover the true voice and emotion.