In the World of Ultraman, My Secret Identity Is a Little Off

Lu Yu opened his eyes. He was on the back mountain, having just come from a battlefield. He looked down and saw a Dark Spark in his hand. Then he looked up and saw someone who seemed to be the human host of Ultraman Galaxy standing in front of him. Lu Yu panicked. “Would you believe me if I said I’m really not Dark Lugiel?!” Lugiel: I believe you. Galaxy: I’ll tentatively believe you. After finally clearing the Galaxy level, Lu Yu opened his eyes again. He was on Planet L77, having just trampled on Leo. Lu Yu panicked again. He hurriedly untied Leo. “Would you believe me if I said I never meant to invade your planet?!” Leo: Heh. Seven: Umm... This time, Lu Yu opened his eyes very carefully. He was in Cosmos, flying a fighter jet and battling Lidorias. Thanks for asking. I just got my fighter destroyed and died. [Notes] Growth phase: Galaxy, Leo, Cosmos, Nexus. Adventure phase: Max, Mega Monster Battle, Geed, Taiga. Travel phase: Trigger, Decker (to be decided). Movies will be interspersed throughout. [Important: Starts with a bang, the protagonist has secret identities, grows over time, no heroine, and is timid. Please be kind to him.]