Traveling Through Xianxia, ​​The System Needs to Atone for Its Sins

Li Yangguang is just an ordinary junior high school graduate who has just been admitted to a key high school - with average grades and a gloomy personality. Apart from his family, only the little sister across the alley is willing to pay attention to him. But a fox mask with white background and red stripes suddenly came to his door, saying that it "framed" him three years ago, and now it was coming to atone for his sins and send him to a world full of spiritual energy to cultivate immortality. At first, Li Yangguang thought that it was the novel he had just finished reading: there was a simple and honest senior brother, a beautiful senior sister, a cute little junior sister holding a medicine bowl, flying swords and spiritual stones, and a young man's smooth journey to the sky with a sword. But the more you go, the worse it gets. There is no mountain gate, no senior brothers and sisters. He became a farm boy named Su Tongxin in the border area. His parents died at the claws of monsters. His only sister, Su Xiaoxiao, was so sick that a gust of wind could blow her down, but she stubbornly believed that he was her biological brother. The shackles of the spiritual stone, the tyranny of the imperial capital, the evil evil seeping out of the netherworld... Every inch of that world is not like a novel, but like a well that is getting deeper and deeper. And that fox mask still refused to tell him the truth. It just smiles and increases the rewards time after time—— What sin does it want to atone for? Who paid the price for this time travel?