A CD containing songs produced for "283 Production XXXX Performance XXX= S/N-GUL4R1TY", to be held at Makuhari Event Hall on April 11 (Sat) and April 12 (Sun), 2026, is being released! The First Press Limited Edition includes a new song by Straylight + Off Vocal, as well as the audio source of "LINKs" performed by Illumination Stars and Fuyuko Mayuzumi (CV: Eri Yukimura) at "283 Production LIVE Performance Uka," held in May 2025, and more. Comes with a case.