Jing Lin is two years old and Gu Yan is nine years old. Gu Yan; "The baby is getting dressed..." He picked up the clothes and hurriedly helped Jinglin put them on.
Jing Lin is eight years old and Gu Yan is fifteen. Gu Yan: "Baby eats..." Gu Yan expertly stuffed a mouthful of rice into Jinglin's mouth.
Jing Lin is eighteen years old and Gu Yan is twenty-five years old. Gu Yan: "Baby take off your clothes..." Jinglin was eaten by the big bad wolf in a daze.
It seems that Jinglin has never done anything with his own hands since he met Gu Yan.