I Have Been Cultivating Immortality for My Sister for Seventeen Years

Chen Du is most afraid of two things in his life. One is that the sister is crying, and the other is that the master is frowning. A car accident caused him to fall from the modern city into the world of Kyushu cultivation. After seventeen years of hard training, he achieved the golden elixir, just to tear open the rift in time and space and return to his sister. But when he finally returned, he found that only two years had passed and his sister had already died in the car accident. He reversed time and rescued his sister, but at the cost of becoming a useless person. He thought this was the end. Until that day, a hole opened in the sky. The female master in white, the clingy little junior sister, the yandere demon saint— They crossed two realms and stood before him. "Found you."