All the Demons in the World Power Training

I traveled through time, spiritual energy revived, wormholes opened, monsters invaded, and the end came. It's commonplace. But... There is also a system with a mission: The powerful people in the world are trapped by their inner demons and cannot escape. Please train their inner demons for them. I understand power leveling, but what is the inner demon? It sounds very difficult to handle, otherwise forget it. It is the desire, dream, and persistence that cannot be obtained and cannot give up, usually power, status, beauty... Stop talking and get to work (it smells so good)! Everyone, please share your inner demons. A Fei: Xianer fell in love with me. Zhiruo: I still love her. Guo Xiang: Give me a kiss. Li Bai: If I could do it again. …