Mirror world arrivals

with the rider war is over, and the winner is Ren Akiyama. everything has becomes peaceful. no mirror monsters, no more mirror world. unfortunately, mirror world, advent decks and the mirror monsters just begin to invade planet remnants. Will remnants use the advent decks to unite and help the world? or is this just gonna be another rider war?

(This story will be a mix, following RWBY and a bit of Kamen rider Ryuki storyline but also a new story that didn't follow those storylines)

(RWBY is claimed by rooster teeth and Kamen rider Ryuki is claimed by Toei company)