Thongdaeng is a grateful dog, as promised; when she was new, she was only 5 weeks; therefore she has to drink Mae Mali's milk that she is a dog of a municipality. Thongdaeng never forgot “Mae Mali” kindness. At first, she has never been away from “Mae Mali”. She keeps following her nanny all day although she doesn’t drink her milk, while other puppies go out to play; Thongdaeng often snuggles with “Mae Mali” by licking and fawning. Then they have to separate, but when they meet each other Thongdaeng still gives respect for “Mae Mali”. On the contrary, other people when they become important people usually forgot their origins and look down upon benefactors who are humble.