After the Demonic Power Went Rampant, I Embarked on the Road of Self-Rescue

"Contract beast + double golden fingers of demonic power within the body" "No Holy Mother, no licking dog, a male protagonist with a hard mouth and a soft heart" Eighteen years ago, his mother sealed the Demon Lord into his body. Eighteen years later, the seal expires and the Demon Lord is about to come out. The dark organization is collecting the fragments. Zhengdao wants him to continue to be a container. Shen Yao: I am not a container, a sacrifice, or a chess piece. Is there demonic power in the body? Use it. Is there a demonic origin? Use it to practice. You all want to control me? Don't even think about it, I decide my own destiny and walk my own path!