Someone asked Zhao Ming: "Why are you so nice to Ruan Qingcheng?" Zhao Ming would look at him as if he were an idiot, and then answer naturally: "Because she is Ruan Qingcheng."
Someone asked Ruan Qingcheng: "What is your relationship with Zhao Ming?" Ruan Qingcheng would think for a while, and then answered very seriously: "It is the relationship between Ruan Qingcheng and Zhao Ming." Then, she would receive looks like she was looking at an idiot.
Taking care of Ruan Qingcheng is like eating, sleeping and going to the toilet for Zhao Ming. He will do it instinctively as long as he lives for a day.
Zhao Ming is to Ruan Qingcheng like air is to breathing. Friendship, family affection, love, stupidly can't tell the difference.