What's Wrong with Me Being a Goblin?

She was originally the princess of the Nine-tailed Sky Fox clan, a royal family in the Qingqiu Demon Realm. When she was six years old, a huge change occurred in the clan. Her parents each gave her half of her magic power, and then sealed her as a mortal and entered the human world. After many tortures, she finally became an immortal, but was framed by her best sister, and even wanted to kill her after being abandoned by her favorite man. When the seal was broken when she died, she regained her supreme power and learned about her life experience. I learned that all sentient beings in the three realms of Kyushu and the four seas will face a catastrophe of life and death...