Dark Tiga: Evolving by Transferring Power to Megumi Iruma

Losing the faith of Earth's humans reduces power? You didn't have to completely change the setting and create this thing just to write about the conflict between the protagonist and the Land of Light. There are so many ways to have a conflict, why write something so tasteless? Did you even use your brain to think of this?

The familiar/familiar abilities and spatial abilities are just for the author to play with; if you don't want to use them, don't activate them! They were activated and then suppressed. Now, they only have three familiars—Megumi, Yuuki, and Kakashi—when they're going to the Land of Light in the universe. The other heroines don't have any contracted familiars.

There was absolutely no foreshadowing, not even a mention of faith in the protagonist's system, and then you suddenly throw this in these few chapters? Did you even think before you wrote it? You dare to write this kind of eccentric setting, and you're not going to change it?

Wasn't this supposed to be Ultraman? Why are we suddenly switching to Kamen Rider? Can you please stop this plot twist?

Why lower yourself in front of Father Omniknight? The protagonist is far superior to him.

Why would the protagonist become Ultraman Neos? It would be better if he became Dyna. The protagonist is Tiga, and he has the ability to transform into other Ultramen. Dyna is a good choice; the protagonist could even transform into Ultraman Dyna. Dyna's Miracle Form and Strong Form are quite powerful, far surpassing Tiga's Sky Form and Power Form.

The protagonist is Dark Tiga. Dark Tiga can absorb energy and transform into a stronger form. The protagonist can go to the R'lyeh Ruins and absorb all the Dark Giant Statues, which might unlock the strongest Dark Tiga form. If all the Light Giant Statues are absorbed, Shining Tiga will be unlocked. It depends on the protagonist's choice, or perhaps both, since Tiga has a light and dark constitution and can switch freely between his dark and light forms.

Another female protagonist who goes to one world and then disappears into another. What's the point of using her Feilu (a powerful mobile game)? She has the ability but doesn't use it.

The protagonist should spend 30 million years conquering his light and dark races to form his core power, instead of spending his days fighting monsters and working alone. He should become a leader to be worthy of the unity of light and darkness and conquering the multiverse.

Well, how to put it? The protagonist has already unlocked Dark Tiga and Shining Tiga forms. If the protagonist goes to the Triga world to obtain the entire Eternal Core and then fuses with it, then the protagonist will have infinite energy, more than enough to use. They can then use Shining form for an extended period. With the Eternal Core and Shining form, they're basically invincible.