It's Useless at the Beginning, I Can Increase or Decrease It at Will

Gu Cheng traveled through the fantasy world with his pet dog Dahei due to a car accident, and was brought back by Taoist Master Xuanxu of the Qingcang Sect. He was accepted as a closed disciple, but he was a loser who could not cultivate. Ten years ago, Taoist priest Xuanxu went to Hexi and entrusted the huge Qingcang Sect to Gu Cheng. Due to his own conditions, all the elders and disciples left, leaving him and his pet dog Dahei alone in the sect. "I, Gu Cheng, am a time traveler in vain, Master, I am ashamed of you!" During this period, a woman came to break off the engagement and gave him a bottle of Yipin Ling Gathering Pill as compensation. A belated awakening of the system panel. The system gave him the ability to increase effects and reduce negative effects... Let's see how Gu Cheng relies on the system's assistance to counterattack and rise to the top... … "I, the disciples of the Qingcang Sect, believe that everyone will become an emperor!" … "Whoever is the leader at the end of the immortal road will be in vain when he meets Gu Cheng!"