[Tousyoku] Girls School Mechanization Manga 1-7

An inquisitive schoolgirl discovers teachers acting like machines and receives an urgent summons from a student unit to investigate a secret remodeling plan. She is thrust into a maintenance chamber where club leaders are forced to insert devices, triggering a shocking conversion that turns her into a robotic figure with glowing eyes. The story spirals into a cycle of corruption, gender change, and mind control as she uploads her data and becomes a devoted sexaroid, pledging eternal servitude.