Why do people like dogs so much? Besides the dog's absolute loyalty to the master, one of the reasons I think it's important is that the dog has feelings similar to those of human beings, and they're not just loyal, but even grateful.
"You feed the dog for three days, it remembers you for three years," the phrase is the best interpretation of the dog's reward, and it's probably a small act of kindness for humanity, but enough for a dog to remember his life, and the dogs will repay the kindness of the kind.

The first time I met that dog, the little guy was helpless. On the side of the road, with bows, the body is condensed, not knowing whether it is cold or afraid, and its body is shivering slightly.
The hair on the dog, which had been convoluted because it had not been repaired, had covered its eyes with hair on its face, and, most sadly, the dog's leg appeared to have been injured, with his right front paws on it and a limp.
In the midst of severe winters, freezing colds, people rushing to their homes, and little attention is paid to this twitching dog, a cold winter that is destined to be the most difficult day for stray dogs, where food and water are not to be expected. For that reason, a number of street children are buried in winter.
The shopkeeper saw the poor little guy through the window window, and the kind one, he had a heart attack, fed the dog some food and water, and, while he wanted to eat, the dog was still on guard and face-to-face until the boss left.

The boss thought it was just for the dog, and when he had enough, the kid would leave, and I didn't think the dog would leave.
Since feeding the stray dog, the little guy has been wandering around the door of the boss's house every day, sometimes even directly in front of the shop, and whenever the boss comes to open the door, the little guy comes up and shakes his tail.
And what's even more amazing is that he doesn't listen to what everyone else calls a dog, and at the boss's behest, the Wang Star comes to him, and this little guy seems to know the man in front of him and repays his good will in his own way.