Mipha watches him a moment, trying to actually gauge his age-- humans and hylians aged much faster than the Zora, after all, and she found it difficult to place a person's age by looks alone. He certainly didn't seem much older than Zelda or Link had been, and thinking of them and the struggles they'd gone through during this whole war too...

It definitely makes her heart ache, for him and for them. She has been considering considerably young by her peoples' standards too, granted, but still. "Seems we can never escape war, no matter where we may go." She falls quiet a moment, watching the flames dance. "I'm sorry you had to fight in it so young. It's not an easy thing. It can feel like the entire weight of the world is on the shoulders of you and your weapons."

At least, in her experience.