Jiang Hual

My parents went to work in the city, and my grandfather took care of nine-year-old Kai Kai's education and daily life at home. Kai Kai picked up a stray dog and named it Xiao Dan 'er. Little Dan is extremely timid and usually dares not bark. Grandpa thought it was a mute dog. Little Dan is very smart. It does whatever Kai Kai asks it to do and follows every step Kai Kai takes