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The person in charge of the security base knelt in front of Zhang Yu and cried, "Master Zhang, Master Zhang, stop studying! If you continue to study, the world will be destroyed!" Zhang Yu said, "Believe me, I really didn't mean it! I will succeed this time." As he said that, the mutated zombie chicken next door made a weird cry and ran towards everyone...

If you were allowed to travel to the timeline you regret most, would you try to change everything? So, the timeline you regret most is love? Is it starting a business? Or a turning point? Will you really change?