Elle Lowel over 7 years ago I know this is Mizuki-san in the front so I place the tag, but I can't tell the other two in the back. I'm guessing the one with the "s" might be Kaede.
henmere over 7 years ago Their costumes are related to Downtown no Gottsu Ee Kanji. Pixiv encyclopedia: 放課後電磁波クラブ (Houkago Denjiha Club)
Neonie over 7 years ago To whoever removed the Anzu and Nina tags before: Look at the stickers on her back.