The first time I got call from Ms Lu Guo Ling because of solar project when I worked in my last company. Her voice sounded clear, bright, humorous, I did not know that she was in her 80s till end of the call when I called her sister Lu, she replied surprisingly,‘What? Sister? I am as old as your grandma.’ The next day we visited Hai Wan Tea Industry as they invited. When I looked at her warm smile, tan skin color and her energetic character, sunshine came into my mind imme