Mobile Suit Gundam Silhouette Formula 91 in UC 0123

Mobile Suit Gundam Silhouette Formula 91 IN U.C.0123 (機動戦士ガンダム シルエットフォーミュラ91 IN U.C.0123) is a Universal Century side work and model-kit–driven project that expands the F90/F91-era setting, focusing on events in U.C. 0123 shortly before Mobile Suit Gundam F91 (機動戦士ガンダムF91). It follows the covert Silhouette Formula Project, where advanced “Formula” mobile suits and modular equipment are tested under tight secrecy—only for those trials to collide with the shadow of the Crossbone Vanguard, whose preparations for future war make witnesses and loose ends a liability. With an MSV-like feel, it leans into prototypes, competing development philosophies, and the uneasy mix of corporate ambition and military planning, showing how the arms race and hidden agendas of the late UC era are already in motion even before the main F91 conflict erupts.