As it turns out, Rin was not in fact joining the 564 REBOOT doodad that’s officially debuting soon, but has been spun off as a solo project separate from Lyric Holic:

【お知らせ①】

りんソロプロジェクト【PsychoPredator】（@psycho_predator）6/13（月）新宿某所にて始動決定★★★

伴いまして6/1、楽曲ニコニコ動画にて先行配信します★★#拡散希望 pic.twitter.com/FUpYOIl1B5

— 槇りん⇔PsychoPredator (@mizuki__rin) May 15, 2016

Sure, Rin. Knock yourself out. You’re terrifying.

Bonus points for anybody who can explain the title of this post!