アンジュ・カトリーナ(さんばか新衣装) 戌亥とこ(さんばか新衣装) リゼ・ヘルエスタ(さんばか新衣装)
The [[official alternate costume]] given to the members of [[Nijisanji]]'s [[Sanbaka (Nijisanji)|]] ([[Ange Katrina]], [[Inui Toko]] and [[Lize Helesta]]) to celebrate their 3rd anniversary, as seen in post #3975366 and post #5254811. Designed by [[usasuzu]], with [[Shigure Ui]] in charge of official illustrations. 

It has an [[idol clothes]] theme.
sanbaka anniversary outfit