Knights and Magic? but I Choose Mecha to Build a Country!

[Japanese light novel + Western fantasy + slow-burning + hegemony + genius + farming + no golden fingers] The two most powerful countries in mainland China: A country founded on knights has developed into the holy era. Divine magic is integrated into offense and defense. The horde of paladins is invincible and can produce unlimited health. A country founded on magic has developed into the age of magic. Each person has a magic equipment, covering firepower, precise strikes, and output unlimited damage. The two superpowers hate each other's founding principles and have been fighting for hegemony for hundreds of years. The male protagonist is reincarnated as the eighth prince of a small country. When encountering such a collapse difficulty, he just wants to curse ○ "Knights or magic? No, I want them all!" Magic and sacred arts are mutually exclusive, but the male protagonist breaks this rule and becomes the only dual cultivator of demons and saints. And the two superpowers have also made up their minds—— Magic Kingdom: I gave him the magical introduction technology, and asked him to go and slap the Knight Kingdom in the face! Kingdom of Knights: The female knight comes to tutor him and asks him to slap the Magic Kingdom in the face! Magic Kingdom: Funds, markets, territory, give, give, give Kingdom of Knights: Public opinion, intelligence, wife, send send send Many years later—— Magic Kingdom & Knight Kingdom: Hot!