her last album was back in 2020 which is still fairly recent but it could be her voice acting gig taking over. she does voice work for teen titans go (japanese dub) and that has a million episodes so it's likely gonna be awhile till we get another album from her. that said keep posted on her twitter if you aren't already. twitter.com/mutsukiQoW she seemed to have did a final print of physicals for 純愛裁判 as of last month according to her site, and before that did a kickstarter thing to fund a music video.
I have been looking for this song several times for YEARS after it got deleted from a different youtube channel. Didnt remember the link so I've spent hours trying to track this. What a great song!