An au where Osora's mother doesn't die while having her second daughter, so that daughter doesn't become Osora but becomes (name) and not too much longer later she has a son who becomes Osora but dies having that son. Arias and (name) are close, knowing each other since they were kids... with a growing, great romance. Set around the time that Arias was moved to live in the Calaveras castle.

(name) was in Arias’ room- which wasn’t uncommon, nor was Arias being in her room. He was doing some extra training since he’s been cooped up in bed for the past two months to recover from his stitches and wounds everywhere (which he never lost any of his muscle mass). He was training, but he started performing bad because (came) and her mischievous self was sitting on his bed looking so pretty, watching him train, her subtle movements so very distracting to him. Then she started humming as she watched him- and he was so close to breaking. “You’re quite distracting, baby, y’know that~? Not that I mind, but you’re making me look bad in front of my amazing girlfriend.” he’d say as if she wasn’t the amazing girlfriend he spoke of.