Sakugan

Humanity lives deep underground in crowded colonies surrounded by the vast and largely unmapped Labyrinth. People called Markers venture into that wilderness to chart routes and confront the kaijuu that make travel deadly. Memempu is a brilliant nine-year-old who dreams of becoming one of them after repeatedly seeing a mysterious place in her sleep. Her father Gagumber knows exactly how dangerous that dream is because he used to be a Marker himself, and he wants nothing more than to keep her inside the colony. Memempu refuses. When circumstances finally force them onto the road together, the mismatched father and daughter begin digging through the Labyrinth toward the landscape from her dreams, arguing almost as often as they save each other.