Er... Given that Arthuria AKA King Arthur is from england, isn't it more likely that she'd be thinking in terms of english measurements? Sun is a distinctively japanese measurement IIRC. She may be speaking japanese, but I think that that's likely to be a function of the summoning magic rather than her actual language...
Be the Ultimate Ninja! Play Billy Vs. SNAKEMAN today!
Be the Ultimate Ninja! Play Billy Vs. SNAKEMAN today!