He Endured for Ten Years Before Cultivating Immortality

The protagonist, Yi Fan, traveled to the world of immortality ten years ago. When he woke up, he found that his father was taken away by the two heads of the family, his mother's whereabouts were unknown, and his sister was beaten into a fool. However, he had no strength, so he could only watch everything secretly. Fortunately, the second family leader did not see Yifan, so he survived. He could only take care of his stupid sister and endure it for ten years. After ten years, the second head of the family left. How should Yifan, who came through the soul, survive in this world? Will he find his relatives and save his sister?