Clock in Reverse Direction

Many things will only be regretted after they have been done, and many people will cherish them only after they have missed them. How many people do not live with regrets throughout their lives? If there was a clock in the opposite direction that could allow you to go back to the past, when would you most like to go back? The day you save your loved one, or the day you miss seeing your loved ones for the last time, or the day you shouldn't have said those words, or the day you take the opportunity to get rich... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.