THE aunt of seven-year-old Leung Ho-kay, whose parents died in a fall on Tai Mo Shan on Sunday, says she will look after her for the rest of her life. Ho-kay, an only child, suffers from diabetes and must have injections three times a day. She was with her parents when they fell, but is not aware that they are dead. Her aunt, Leung Fung-ming, said: ''If I have my own family, I will treat her as my own daughter.'' Ho-kay is living with her grandmother and grandfather and three aunts in a Sha Tin flat. ''Our major problem now is how to explain to Ho-kay the death of her parents,'' said Ms Leung. ''We haven't told her the truth. We worry that it will worsen her health. ''We also think it is not the best time to let her go to school. We fear her classmates may tell her the truth. ''But we will explain it to her as soon as possible.'' ''We have no plans for her future at the moment,'' said Ms Leung. ''We hope she will recover from diabetes and be able to take care of herself.'' The tragedy took place on Sunday evening when the Leung family reached a hill near Ng Tung Tsai. Leung Ka-lok, 33, and his wife, Leung Ng How-kuen, 31, slipped on a muddy slope and fell down a cliff. The Leung family moved into a Sha Tin flat about five months ago and were responsible for paying the mortgage of more than $8,000 a month. Leung Choi, 73, Ho-kay's grandfather, worried about her schoolwork. ''Her parents used to help her, but we are illiterate,'' he said.