Ultraman Ep: Journey

No one knows how they were born, or who created them. They are dirty, powerful, and equally hostile to all living things. What is even more desperate is that they cannot even be killed. Humans have tried all imaginable methods and poured out all the firepower they can, but even if their bodies are shattered, the pieces of flesh will squirm, gather, and regenerate. Therefore, under their offensive, human beings... No, the number of living things on earth has declined sharply. This dark situation has lasted for hundreds of years and will continue in the future... However, [variables] appeared, and the unexpected visit of an extraterrestrial visitor made everything seem to have a slight turn for the better...