One of main characters of Sacred Seven. He was born with the power of Sacred Seven from his mother's exposure. A few years ago before the series, he lost control of his powers and harmed a lot of people. Hence, the reason he lives in solitary. Alma can only control his true powers if Ruri inserts a special Lightstone in him. He has access to all seven powers (hence the meaning Sacred Seven). Alma used to have a crystal that belong to his mother that was suppose to suppress his powers, but it got thrown into the river by a bully which caused the incident. He has been looking for it ever since, hence developed a habit of looking for rocks.

(Source: Wikipedia)