This is what you and your team hears when she ults: “Let the kitsune guide you!”
This is what the enemy team hears when she ults: “Kitsune no kagidzume o tokihanate!”
It different compared to everyone whose hostile ult voice line is also what they hear while the friendly (usually English) ult voice line is only what their team hears.
IMO, I prefer her Japanese ult voice line to be audible to herself too since she pronounces kitsune correctly there than in the English one (which has the stress on the second syllable instead of the first) and it also follows the format of other heroes’ ult voice lines.