User blog comment:Abcioh12/New Character リリィ/@comment-24014235-20160808133003/@comment-30498997-20160808214851

Here's a link to the official website: http://aikatsu.com/stars/news/059.php I hope you understand Japanese because I can't find the English version XD But based on some (rough) Google translation, I managed to find that her name is Lily Shirogane, a 2nd year student who belongs to Flower Song Class and a good friend of Yuzu. Some users even translate the last point as "Yuzu's bestfriend and childhood friend". Well, I think the second translation is more accurate than the first.