I Love Science - Demon Core Essential T-Shirt for Sale by Queen

demon core A subcritical mass of plutonium weighing 14 pounds, the radioactive sphere known as the demon core killed physicists Harry Daghlian and

Demon Core is a male character in Animatic Battle He was one of 56 eligible characters able to debut in Object Fool, but failed by only getting 6 votes  demon deals Demon Core in his hands which he obtained from killing Lei Yan Shou within Demon Core in this person's hands was only the Demon Core of the fifth level