A rich husband and a naive wife

A happy family.... A mother A father A baby girl.. Dad is a business man. Mother is a doctor. The girl is 5y old. As usual father goes to the office. Mother goes to the clinic and baby girl goes to the school. A sudden accident to the car.... where both her parents were seated in the car. They dies at the spot. A small girl who was just 5y old don't know what to do. She doesn't have any relative to look after her. She was left in the orphanage. Suddenly one day a family with a mother, father and a small girl comes to the orphanage and adopts her. They brings her home and gives her a new name Liu yi fei. "From today onwards you will be our second daughter dear" she feels happy that she now has a family. Actually her new father is a business partner in her dad's company. He only owns 30% of shares remaining 60%shares are in her dead father's name. Her dead father registered all the property in her name. When she turns15 she will inherit the properties. so to get those properties they adopted her and acts affectionate to her. she has a sister who is one year older to her. she always treat her as an enemy and doesn't likes her. At first they treated her as a family member but they slowly showed their true colors to her. This change started when a boy called Wang ka Ye entered their house. Wang ka Ye is the only son of Wang groups. They are filthy rich. They owns a lot of resorts , hotels and other business in the country. They are know as Wang Lord's in the country. One day he meets a fire accident in the park. He is under the supervision of the Body gaurds while playing. He tries to play a prank on them. so he runs from them and hides in a room where generators were placed. An unknown person locks the door outside the room and makes the connections of the generator loose. He sets a time of 5min to blast the entire room. Ye tries to open the door but he couldn't open it. He saw the timing box in the room and understands the situation as he is 7y old.