Ouro Kronii (オーロ・クロニー) is a female English-speaking Virtual YouTuber associated with hololive, debuting in 2021 as part of "hololive English -Council-" the branch's second generation alongside Tsukumo Sana, Ceres Fauna, Nanashi Mumei and Hakos Baelz.
On 9 October 2023, she joined the unit "hololive English -Promise-" alongside IRyS, Ceres Fauna, Nanashi Mumei and Hakos Baelz.
Her unit's name was changed to "hololive -Promise-" after every branch was merged into hololive in September 2026.

"Kroniichiwa! It's me, perfection. Also synonymous for Ouro Kronii!"
Time is an unwavering, precise entity, and its Warden - its overseer - is equally cool and impeccable.
Occasionally her exquisiteness leads her to decisions and bouts of luck that transcend the understanding of mere mortals. However, even utmost perfection finds no foothold in the face of her mortal enemy—disorder.