Reborn as a Good-For-Nothing, I Went Crazy Trying to Get Back Ten Thousand Times

My name is Liu Ji. I was once the Sword Emperor who was a master of swordsmanship, but I was reborn as an abandoned loser of the Liu family. This world respects cultivation, and there are many powerful people in the nine continents. But I awakened the ten thousand times return system at the beginning - if you kill me once, the damage will be returned ten thousand times, and all the sword cultivators in the city will be buried with you. What's even more outrageous is that I picked up a crazy nun in a ruined temple. When she went crazy, I unlocked an ancient sword intention. Others have practiced hard for ten years, but I have reached the level in one sleep. My tribe bullies me, my sect oppresses me, and the Immortal Emperor destroys me? Very good, I'm pretending to be useless and saving up my knowledge, just waiting for the moment when you take action. In this life, I don't talk about reason, I only talk about swords.