The Heaven's Dark Guardians (天恵 闇 保護者, Tenkei Yami no Hogosha, shorthanded as HDG) is a society of seven people who protect yet destroy. It's ironic for heaven to have dark guardians as heaven is a place for good people. They each represent a virtue. The organization's other name is the White Lotus Society (白蓮. Byakuren), which is what they are called in the real world.