So this popped up on Twitter without any warning. Just one post with an image and nothing else. Now these are four of the former Guso Drop members, at least judging from who the account is following. Namely Yurapiko, Miyako, Rei and Rin. Nobody knows exactly what this is yet. Speculation is that it will be a new idol group. By the looks of it they will be called BURST GIRL. There is no further information yet. Just the below post.