Simultaneous transmigration, but with low martial arts and low magic.

They both transmigrated, but why are they all in low-martial-magic worlds? Fortunately, the Gray Mist Space allows for synchronized memories, abilities, and resource trading, so… Muzan: Why is it that, as fellow Demon Kings, I am universally hated, while you are unafraid of sunlight and even revered as a god?! Temujin: At the Mount Hua Sword Tournament, the leader of the Five Greats, single-handedly suppressing ten thousand armies, like an immortal descending to earth?! My Mongol army must not march south, but only westward! Tyrion Lannister: Saving human civilization from collapse, establishing an unshakeable foundation for eternity, Your Majesty Emperor Viserys, welcomes you to ascend the Iron Throne! Zhang Zhiwei: I inherited the Heavenly Master's Degree, wield the Golden Light Thunder Technique, and all extraordinary beings in the world bow before me, yet you… have transcended the mortal realm and ascended to immortality?! A shallow pond cannot raise a great fish, so how can we gather the power of all heavens? To be a demon, to follow the Dao, to be a god, to be an immortal… to forge a different path and prove the Dao of all heavens! [Demon Slayer] [The Legend of the Condor Heroes] [Game of Thrones] [Under One Person]…