Perhaps Kirsche and Pippa could collab with an entirely different horror game, something old-school, but with an artstyle that might appease the fox...maybe
October 19th, World of Horror launches 1.0, I have been advocating this game for years, and the EVILEST Sawa-sama has been playing it on and off the past year as well (vods on her channel). It also supports user-created content, so chuubas can have community nights this sp**ky season to see what their fans can come up with to sp**k them: