Dig My Spiritual Roots and Feed Them to Junior Sister? Then Pay with Your Life!

Looking for a Book on Cultivating Immortality. the Heroine Is Being Dug up by Her Master to Give Her Spiritual Roots to Her Junior Sister. the Heroine Resists

The heroine is the young master of a big family and then enters that sect. Originally, her master only wanted her, but the junior sister seemed to be the destined son and had a master-disciple relationship with him, so he accepted her. When digging for spiritual roots, the heroine became disheartened and broke off the master-disciple relationship. I stopped updating when I was watching it