Today He Is Also a Messed up Demonic Fallen Holy Emperor

"This is the story of a young man repaying his debt for a body that does not belong to him. It is also the story of an empty shell seeking death. It is also the story of this empty shell of a young man being gradually filled..." "Ah! What are you writing? It's completely out of focus! Let me tell you! This should be a story about me spending my days leisurely and constantly messing up, right?" "As long as you are happy, Master..."