As the mysterious organization, Hades, steps up its attack, Koichi taps into a new area of his own unconscious and summons the war machine, Poseidon. Made with the same otherworldly technology that was used to create the tower of Babel, Poseidon's unbelievable strength turns the tide in Koichi's favor.

Hades switches strategies and attacks Reika with a strange vampric virus. Will Koichi be able to stop the virus without releasing too much of the power and losing his own personality?

Contains espisodes 5-7.