What! It's Raining Heavily and I Can't Hear the Sound

Sangyu ├─Business partners: Lin Yan (current), Zhou Minghao (former) ├─Emotional line: Qin Yuan (present) →Hidden fate from the summer camp ten years ago └─Professional connection: Liu Ming (prejudice) Qin Yuan ├─Family: Qin Xi (sister/heart knot) ├─Dual identity: doctor/volunteer "Qin Yang" └─Secret: Research on auditory nerve repair (for Sang Yu and his sister)