Speaking about her cute butt, I thought this was already posted but here's a preview for her second photobook posted to instagram a while back (sadly I don't think it exists without the giant heart sticker) and IMO it's better than a lot of stuff in the actual photobook!
It's really tough finding good stuff that hasn't already been posted, I hope you can post more if you do have more Gakuraku, its much appreciated! I'll try to help you revive this thread