Suou's twin brother. He loses his right eye due to an accident with a falling meteor core fragment, however this incident turns him into a Contractor. His remuneration is to be forced to use a wheelchair every time he uses his power. The full nature of Shion's powers have not been revealed, however, it has recently been revealed that the current Suou is actually a 'copy' he created with his power. He also displays telepathic abilities, being able to mentally contact his sister and instruct her in how to get to safety during an attack on their home. He leaves behind a clue for Suou telling her he has left for Japan.