Downward Dog

His father was not good at words and tried to use stick education to let him know that he should not follow his father's old path when he grew up. Unexpectedly, father and son both remembered the kindness of a drop of water and repaid each other with a spring of water. Because of his friendship, his father was killed in a knife attack. He tried to protect others from disaster and lost three years in vain. He was the king of children when he was a child, but he became a turtle when he grew up. He had nothing but friends, grew up in adversity, and silently wrote their seemingly regretless past! But looking back at the way they came, do they really not regret it?