Ultraman: Invincible from the Moment I Get the Tiga Aura

Who says Tiga is sneaky? This Tiga is downright sunny! As a successor of the Light, I have every reason to suspect Golza is after me! Li Yun accidentally transmigrates into the world of Ultraman Tiga and becomes Daigo. But he never expected that, just as the story begins, Golza, who seems to be a New Game Plus player, would target him. In the world of Ultraman, he gets swallowed by a monster from the start. The stone statue of Tiga inside the pyramid is smashed to pieces, too. It's over. The sky is falling. Can someone tell me what's going on, and where this third monster that suddenly appeared alongside Golza and Melba came from? Luckily, the Perfect Life Choice System comes knocking. As long as he completes a perfect life path, he can earn rewards and become invincible! A legendary item: the Tiga Aura? A netherworld-concept skill? Just how sneaky can it be? Bring it on! I want to see what it can do! Monster: “Don't mind if I do! Everyone says Tiga is sneaky, but no one told me he was this sneaky!” Starting with the Tiga Aura, he evolves step by step to the peak of the universe!