MTL - Divine Doctor: Daughter of the First Wife - Chapter 1165 Who is the defense?

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

A frail and often ill son of a wealthy merchant unexpectedly embarked on the path of cultivating immortality while seeking a way to prolong his life!During the Tang Dynasty’s Golden Age, the world was at peace, the climate was favorable, and the people lived in tranquility.One thousand years later, demonic beings devoured the sky, demonic ghosts rampaged, and sorrow-filled cries resonated everywhere.The Journey to the West reappeared, the Great Sage fought against the heavens, the Heavenly Stem descended to the mortal world, reincarnating anew.Mysterious transmigrations and reincarnations, reality and illusions intermingling, truly extraordinary!Is it just a dream predicted in the prophecy? Or a reality that has yet to occur?Can he eradicate the predestined demonic barrier, eliminate the catastrophes of the Three Realms that have yet to occur, and save the people from utter destruction?

“Victor Kane, your life has been the easiest. Born into the wealthiest family, never having to work a day in your life, always surrounded by luxury, and never experiencing a single moment of misery. Even dying within seconds without an ounce of pain. I must say, it's interesting.”When even the gods had taken Victor to be the luckiest, his luck seemed to run out finally._______[Caution! A curse has been inflicted on the user.][Curse Grade: Celestial][Curse Description: The user is restricted to only tame insect species. Taming normal species will become impossible with this curse.]_______Reincarnated to the world of Beast taming where only the tamed beasts could keep your societal status. Theo was born with the curse to only tame ordinary insects.Follow his journey where he takes the help of the very simple and ordinary creatures to pave his path in the future.“Wait, what do you mean the Outer Devils arrive in metal ships and armored suits from beyond this world?!”Being attacked by space ships and Mechas, all Theo had was his tamed to fight against the danger.