Its a crossover with some of the idea's coming from 2014's Godzilla reboot, but unlike a few other's i've read he's not the villain. Im taking the one monster from the Japanese film's that alway's gave him a tough fight( his role is based off of Rebirth of Mothra 3, with Equestria not knowing its real name but going off his title from the other film. The Kng of Terror( compared to what he can do, every other villain were NOTHING, not even on the same planet power wise. And you cant have a kaiju fic( or movie for that matter) without levelng a few citie's( wich is were Twilight as Queen come's in. With Cadence now ruling the empire by herself and Twilight the only other living alicorn time to do away with the tetrarchy with a monarchy). Canterlot and Manehatten wont survive the Kaiju War( when Canterlot die's is where Twilight's new role really begin's, because Celestia and Luna, along with most of the guard, will give their live's in one last attempt to stop it, which is were the first half of the storie end's( Celestia and Luna come back one last time for Twilight's coronation, mostly to say how proud they are and thank you for everything she had done and to give thier belesing's.) The whole story is actually Twilight's memoire's set 10 year's later, a few houre's before thier first memorial day( commerating Canterlot's fall, then on to Manehatten to commerate the war's end and to honor their savior.