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Ao Changsheng traveled through the wilderness and transformed into a dragon. Was he born at the end of the Dragon and Phoenix Tribulation? Awakening the most powerful retreat system, the retreat dojo is invincible, and you can become infinitely stronger by retreating! "One, I will not retreat and go to the wild world, the system will be shut down!" "Two, I will retreat for a thousand years, and the reward will be a drop of the essence and blood of the ancestral dragon!" "Third, I will retreat for ten thousand years, and the reward will be the Ancestral Dragon Breathing Technique!" The longer the period of retreat, the richer the reward, which can be infinitely stacked! As the Dragon Ancestor with infinite longevity, he decided to retreat into seclusion! I, the ancestor of the dragon clan, will never leave seclusion!