Gene Metallica - Kikou Shoujo wa Kizutsukanai Re:Acta

This manga is a spin-off of *Machine-Doll wa Kizutsukanai* and is set several decades after the events of the original series, during the early 20th century in Japan. It continues the world established in the first series but shifts focus to a new timeline and setting. The story explores the same themes and concepts as its predecessor but introduces new developments and circumstances relevant to this later period.