What's Wrong with Cultivating Immortals and Practicing Mystical Arts?

Yu Nianzhi was adopted by Taoist Priest Yuan Qingguan since he was a child, and he learned mystical arts. He did not open or eat for three years. People at the mountain often asked for a hexagram but could not get it. Yu Nianzhi lived a wanton life on the mountain. However, Yizhao traveled through time and became a four-year-old girl. She worshiped at Piaomiao Peak and became a junior sister. The senior brother is a lonely star, the second senior sister is beautiful and has a bad life,,,,,, the sixth senior brother is plagued by evil spirits, and it is all up to the younger junior sister to turn things around.