Wa-Suta (わーすた; The World Standard) is a Japanese idol group that was formed in 2015 under Avex. There are five members who each have a corresponding pastel colour: Sakamoto Hazuki (坂元葉月) (Pastel Yellow), Hirokawa Nanase (廣川奈々聖) (Pastel Green), Matsuda Miri (松田美里) (Pastel Purple), Kodama Ririka (小玉梨々華) (Pastel Blue), and Mishina Ruka (三品瑠香) (Pastel Pink).