Mujaki is just your average Japanese teenager. Until he learns of the deeds of his ancestor Seigi. The demon Henshi, who Seigi had banished long ago, is back, and has only one thing on his mind--to kill Mujaki. By sacrificing Mujaki to an evil power, Henshi can open a gateway from the NetherRealm to the mortal world, and take over. But Mujaki's guardians, the Tenshi Bushi (Angel Warriors) are ready to fight to the end to prevent that from happening.