The God of War Becomes an Immortal

The saddest time travel is when the soul travels into the body of a fool who is poorer than a beggar. If you want to dominate or become an immortal, you can only practice life-threatening practice. The problem is that you don't even have a direction for practice. The old Taoist said that the key to improvement is detachment. The best way to solve any problem must be detachment. Detachment of every predicament in front of you will inevitably lead to destruction if you look back. What the protagonist has to do is to continue to detach until everything is clear...