Katsura visit Yorozuya with a Elizabeth's placard to solve the mystery of Elizabeth's disappearance. But the investigation only reveals a shocking truth.

The Yorozuya and Katsura follow Elizabeth to stop the Renho from taking over the earth.

The Yorozuya, Katsura, and Sakamoto disguise themselves as Renho and infiltrate their base.

Elizabeth and Dark Vader battle to the death and just when things are not looking so good for Elizabeth, Katsura shows up to save his friend.

The Renho join forces with Sakamoto and the Yorozuya against Dark Vader and their home planet in order to bring peace to the universe.