After Rebirth, I Took the Strongest Spiritual Beast to Practice the Ruthless Way

The sect has declined, and in the past hundred years, only my junior sister and I have cultivated immortal bones. According to the rules, before the thunder disaster comes, we must go to the spiritual tomb to select the spiritual beast that is connected to us and form a blood contract. The higher the level of the spiritual beast, the stronger the spiritual power. There were disciples of the sect who relied on divine spiritual beasts to soar. In my previous life, the beast spirit beads I selected cultivated the ancient divine beast Fire Qilin, while my junior sister only cultivated the mortal Cai Que. Who would have thought that the divine beast I had fed with my heart and soul would abandon me when the thunderstorm came and rush to my little junior sister's side to shield her from the thunder! My immortal bones, which were hit by eighty-one lightning bolts, turned into demonic bones. However, my fiancé accused me of colluding with the demons and being contaminated with evil spirits. That's why the mythical beast disowns its master! The junior sister became the light of the sect and became a Taoist couple with my fiancé. I became a sinner of the sect and was imprisoned at the bottom of the Heartless Pond, suffering the pain of bone erosion. I can't figure it out... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.