[Semakute Kurai (Kyouan)] Chou Mahou Shoujo Kaizou Mashiro [Kuraudo]

Magical girl Mashiro soars home from what should have been a routine mission, only to tear off her costume and discover her body has been secretly remodelled with an addition she never asked for. Before she can even process the shock, an unknown entity begins breaching her core's mental firewall from within, and a slick, hungry intrusion starts rewriting the super magical girl from the inside out. As her defenses glitch out and her eyes turn a corrupted shade, Mashiro's desperate cries of 'no more' suggest this remodelling is only getting started.