Barrier Cracker

Sinopsis

In a world ravaged by pollution, the mercenary Kyle discovers a young mechanical girl floating in a culture tank within ancient ruins. The girl, who has no name and struggles with language, is named Nine by Kyle. Despite her initial difficulties, Nine possesses remarkable combat abilities. Kyle, inexplicably certified as her master, embarks with Nine on a journey through the desolate world, seeking the mythical Heaven's Gate, rumored to lead to paradise.