Zuo Pushe Qu Shitu had a tooth in his mouth that could be used, but it had been hurting from time to time for two days, which made him very irritable. But his immediate superior, Shangshu Lingsu, really refused to let him pull it out.
Until one day Su Huan really left, Qu Shitu couldn't bear it and pulled out his teeth.
Then he discovered that there seemed to be no difference without this tooth. He still ate the same food and gnawed the bones. Probably only his tongue remembered this tooth and would lick the gap intentionally or unintentionally.
But after a while, the teeth became loose.
Purpose: Those who do good to others will achieve moral success.