In 2013, Yūki, together with voice Actress Ayana Taketatsu, formed the singing unit Petit Milady. Together, they performed the song "Kagami no Dual-ism" (鏡のデュアル・イズム, The Mirror of Dual-ism), which was used as the third opening theme to the 2013 anime television series Yu-Gi-Oh! Zexal II, and in 2014, performed the song "Azurite", which was used as the opening theme to the 2014 anime television series The Pilot's Love Song. In 2015 she played the role of Yuuki Konno in Sword Art Online II, and in 2017 she played the roles of Tanya Degurechaff in Saga of Tanya the Evil and Yoshiko Hanabatake in Aho-Girl.