[From back of UK PS2 edition box]
A new dawn, a new hero, a new enemy....
With the genma demons and the evil overlord Nobunaga defeated, the Onimusha lay down their swords and retire. But the peace lasts only fifteen years. On June 29, 1596 Japan wakes to a blood-red dawn. The new Emperor Hideyoshi begins uprooting all the cherry trees. And the genma demons return, with Hideyoshi commanding them. Again, the Onimusha must rise and fight together, to stop an entirely new dawn, to save the world from an entirely new threat of evil...
NEW DAWN - The epic Onimusha series returns in a radial new form. Improved action sequences see you battling in stunning, three dimensional arenas for the first time.
NEW HEROES - Five new Onimusha heroes to play. In battle, choose and control two simultaneously, switching between them at any moment, for strategic advantage.
NEW CHALLENGES - Upgrade heroes with new powers and new weapons - each has their own strengths, weaknesses and story to discover.