The Z-ton Core has arrived to wipe out anyone claiming to be Ultraman. Their leader, Temperor, lets it be known that the Ultramen were the true reason for the attacks on Earth in the past. Shinjiro can't believe it, and as his rage grows, his body seems overwhelmed with Specium energy. A question begins to spread among those watching the battle—what exactly is Ultraman?

Volume 18 of the Ultraman manga series by Eiichi Shimizu.