Ogre Killer is an alcoholic beverage which is used by Chu, the Sui Ken together, in order to manifest a powerful energy. It is unknown if the drink has a composition that reflects the Sui Ken, or just has a high alcohol content. After being ingested by Chu, the strong drink causes nausea, followed by vomiting. He then uses a lot of alcohol in his blood, and combines it with his Demon Energy and then releases it, thus causing him to gain increased strength, stamina and energy and keep the skin and hair purple. Chu then uses this energy to manifest higher technical Ogre Killer, not on how much alcohol is gone from your body.