User blog comment:Hayashi H/Spring 2016 Event Guide/@comment-25861293-20160513191940

I've been watching your E-3 farming (up to 963 S-ranks now, with no Yuus in almost 700 nodes) and just thought that I'd mention that I saw a thread on a JP site (of course, I didn't bookmark it and I don't know where it was) that speculated there might be a 2 Yuu limit on easy. I know that's not terribly helpful, but I thought I'd just mention it here. I'm only up to 176 nodes on easy, but I've only found one Yuu (for a total of two) and no Shiois (though I already have two).

Thanks for keeping track of your farming results publicly. If this has been debunked, I'll get rid of this post.