Greetings from /x/. We have been looking for a strange anime in which nine girls are stuck in a "bathroom" without doors and end up killing themselves. The only lead that we have is that it's title is something along the line of "saki Sanobashi" or "go for a punch". I'm sure this has been asked a few times but I would really appreciate some help. If anyone can help us solve this mystery it would be greatly appreciated

>Pic related it's the original description