Hajun is a third-year student at Etelia Academy, a boy who inherited the 'Bloodline of Radiance'. He is bright and has a strong sense of justice, but his impatient and impulsive personality often gets him into trouble. He is childhood friends with Haram and his most trusted comrade, fighting together to stop the Dark Faction. Even when caught in the schemes of E-hool and Sion, he possesses an indomitable will that never yields.