ultraman zearth
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The titular Ultra of Ultraman Zearth. His human form/disguise is Asahi Katsuto.
For awhile, he was the unofficial mascot for the advertisements for the Idemitsu petrolum company, hence the product placements in the movies. He would be succeeded in this role by the Ultra Idemitsujin, who would appear exclusively in Idemitsu commercials.