so, this is supposed to be a new challenge, right?

I saw one of Samidare unable to do it normally, so Aoba takes a photo and turns it to the side to make it look like she's doing upright, but have seen it going on for a while

is there a name for this challenge in particular?

dandan said:

is there a name for this challenge in particular?

As far as I know, not here. But Twitter and Pixiv have a tag for this specific meme (#I字バランス部).