CRYSTAR is an ARPG developed by FURYU Corporation. Rei fights her way through the afterworld of Purgatory to rescue Mirai, the little sister that she killed. To resurrect her, Rei makes a deal with Demons to combat Revenants and Specters the tormented Souls of the dead. CRYSTAR s unique game mechanics allow the player to harness the power of grief. Use Rei s tears to craft weapons and armor as well as summon a Guardian to protect her in battle. Rei s weeping gives her the strength to fight as she searches for her sister s lost Soul.
A girl named Rei and Mirai, her little sister, are dragged into the afterworld of Purgatory by an unknown entity.
Scared and confused, Rei tries to lead them home when they are attacked by a terrible monster. To protect her little sister, Rei unlocks the strength hidden within her. With it, she fights against the dead Souls of Purgatory.
However, this power turns against her. Rei accidently kills Mirai with her very own hands, thinking she is an enemy. Devastated, Rei weeps hopelessly at what she has done. Sensing an opportunity, two Demons appear and whisper in her ear...
Rei takes their offer and signs a contract with the Demons. Now an Executor of Purgatory, she sets out on the story that shall again and again plunge her into life-threatening battle. All to save the sister she loves.