[At a glance, Byleth seemed almost waifish compared to Hayame - especially without his cloak bulking out his otherwise slim shoulders - but his muscles were well-toned, and he had a slight unfair advantage due to his bizarre biology: being a dragon-human-homunculus hybrid meant his physical strength was slightly above average for a human, and his slim frame was denser than any human's ought to be.

Not to say he was inhumanely strong, though. He admitted that his talents lay more in his agility and precision, rather than brute strength... so why was he stepping up to the figurative plate to arm wrestle a woman who might be able to fold him like a pretzel with little to no effort?

He was intrigued. He had witnessed these type of competitions often in his world, but no one had ever dared to invite the 'Ashen Demon' into a friendly arm wrestle. Here, the shadow that title carried didn't mark him... also he had drank quite a bit, which had placed him into a curious and agreeable mood.]

Yes. I wish to gauge my upper body strength against yours.

[Um, weird way to put it, Byleth. He sat down across from her, and pinched the tip of his gloved finger.]

Should I remove my gloves for this? Admittedly, it's the first time I've arm wrestled, so I'm ignorant of its etiquette.