The unknown Ultraman Morta was born with huge flaws. The cracks in his appearance and the lack of original energy made him weaker than other warriors.
Morta, who has been wandering in the universe since he was a child, has developed the ability to escape, but he still cannot escape the many crises in the universe. He is about to die and is saved by Tregear, who has just merged with Gridham. Morta regarded the other party as his idol and benefactor, and resolutely decided to pursue Tregear's trajectory. On the way, he met Sero, who ran away because of depression. The two separated after decades together. Sero tore off half of the scarf and gave it to Morta as a token, promising to meet again when they grow up.
And the illiterate Ultraman Morta, who has been wandering in the universe for thousands of years and can only speak in sign language, suddenly realizes that he has not learned the other person's name. What's even more unfortunate is that the energy wave shocked by the M78 Nebula knocked him down to the earth. Due to the energy defect, Morta lost the ability to transform. Fortunately, he met a member of the Igis Guard under the pseudonym Mikazuki Akatsuki. He learned about the existence of Taiga and began to explore this strange planet...
