On his 18th birthday, Rivan Aster witnessed his family being murdered. Trapped in an endless cycle of death, Rivan lost control of himself. Even after being saved by Nathan Loence, a member of the Aegis Division, Rivan had to accept the bitter reality that he could no longer live with his family. That is what led Rivan to accept Nathan's offer to go to the Aegis Academy. A place where he found friends and the meaning of his strength.