I'm a librarian who loves anime, manga, and reading a wide variety of genres.
"I think we're almost the same age. How old are you?"
Shoukei thought a moment before replying. "Sixteen. You?"
Suzu had to pause and do some calculations of her own. She had been swept to the kingdoms at the age of twelve, as they counted the years here; then she'd spent four years traveling before ascending, which made her...
Shoukei looked at her a bit curiously, but said nothing.
This part makes me laugh. Shoukei and Suzu are finally meeting for the first time. Neither one wants to tell anyone their true age, because the explanations could get awkward. Shoukei is physically 16, and maybe 46 in actual years. Suzu is physically 16, and maybe 116 in actual years.