Heitan was very obedient; he understood almost everything Huo Sining said.
Before coming to Chun Jing Garden, Huo Sining had warned Heitan not to hurt anyone, so Heitan was very well-behaved. Even when Huang Xiaoyi brought a bunch of brats to tease him in the backyard, Heitan didn't get angry or aggressive. Instead, he played monkey tricks with the children, doing whatever Huang Xiaoyi asked him to do.
As soon as Liang Junqi entered the backyard, Heitan detected the presence of a stranger, but because of Huo Sining's previous warning, Heitan did not act out and obediently lay on the grass, ignoring her.
It wasn't until Liang Junqi pounced toward him that Heitan only prepared to dodge, without any intention of attacking or biting. Even though he knew Liang Junqi harbored ill intentions, he also knew that someone of her fighting ability could not hurt him.