so this is rouge huh? she was like mentioned in the WN in chap 16 (basically like volume number 16) as Tia's stand in as Ed got killed and returned back to world 1. but because Tia is with Ed, she no longer exist and rouge is the replacement as the mage (not spirit mage) apparently had Tia not join, she would have been the mage of the party. and character wise, think of her like a villianess and causing the hero to act very uhhhh rude compare to this loop but she got softer with Ed as he saved her (though Ed lost most of his memories) they failed and the loop ends saying the end for world 1 (again) but then Ed remembers again and make use of his skills once more (but at this point of the story, i think he lost his flagmaker skill as this one is not a banishment skill)