Russian Cosplay: Kotobuki Tsumugi, Hirasawa Yui, Akiyama Mio (K-On!)

Fandom: K-On!

Model (Kotobuki Tsumugi, Hirasawa Yui, Akiyama Mio): Polina Shlyachina, Irina Tychkova, Lyusya Snezhnaya

Photo by Neyro

K-On! is a Japanese four-panel comic strip seinen manga written and illustrated by Kakifly (from wiki).