Chyi Yu. She was once a smash hit, and her voice was soft, elegant and clean, which was comparable to that of nature. Chyi Yu is not only beautiful and sweet, but also has discerning eyes. He not only saved his younger brother from fire and water, but also made his younger brother Chyi Chin fall in love with music and helped Emil Wakin Chau a lot. Chyi Yu's parents' marriage broke up. After that, they went abroad, leaving only their brother Chyi Chin as their companion. When his parents divorced, his younger brother Chyi Chin was still a little boy. Great changes in his family made him rebellious when he was young. He fights with a group of friends all day, smokes and drinks too much, and what's more, he is put in a reformatory because of a moment of confusion. When the tree fell, Chyi Chin, who was put in the reformatory, became a thoroughly bad boy. One by one, his friends left, leaving only his sister Chyi Yu with him.