The Twin Esper Girl Doesn't Want to Conquer Another World

A fantasy world that seems familiar yet different, bizarre mysteries intertwined in the shadows, and a traveler from the sea of stars who opens their eyes in the darkness and becomes one of a fated pair of twins born in response to a divine miracle. The swordsman who chooses to take up the sword: can they get the life they want this time? Note 1: This is a slow-burn story. The blurb isn't doing it justice, so give the main text a try. Note 2: The story travels back and forth between two worlds.