Zeni no Tatsujin

The plane carrying her parents and grandparents crashes! Poor Lan is left all alone in the world! But just as she thought she was alone, her two Chinese brothers appear!
In fact, her mother is the daughter of one of the world's largest conglomerates, and the three siblings are to inherit an estate worth ten times the national budget of the United States! The condition of the inheritance is to accomplish 108 "good" things. Usually, it ends with a series of small acts of kindness. However, the two older brothers said, "In the name of the Zhang family, we are going to start the best charity project on the private sector level!"