Leonix Fights, but Pokémon

Leonix Ultra Spirit I, Haidong, am an ordinary person. When I woke up, I traveled through time. This would have been a great joy. After all, traveling to another world, how can this not be a beautiful thing? But wait. What does it mean that there is no Ultraman in this world, only monsters? ! What does it mean to have a large conch lying in the sea? What does it mean that Griza came out of the sun! What does it mean that I am Leonix, but the one in my battle instrument is not Gomora, but... "Cha!" Look at the yellow, five-tentacled creature at your feet. Starfish. The starfish of Pokémon. "..." Haidong was silent. Haidong looked at the starfish in his hand, then at the large conch rising in the distance, and at the monster emerging from the sun, emitting a strange mournful cry. Houses collapsed and the earth trembled. Darkness enveloped the earth, and the world seemed to be falling. Human beings are crying, human beings are mourning. Haidong took a deep breath and opened his eyes. "Come on, Gem Starfish!" When the 100-meter-tall MEGA gem starfish rose from the sea, its huge core shining with iridescent light, the whole world fell silent. "Who said Starfish isn't Ultraman?" "Today, I will use Pokémon to save the world!" (PS: This book is also known as "Leonix's Pokémon Really Grows Big", "Starfish Are the Eternal Gods", and "About Me Taking Pokémon to Fight Monsters in the Ultraman World")