Dai Uchuu Kaijuu Dai Bouei Taisen

A unique buddy team of a space girl and a middle-aged detective takes on a full-scale sci-fi monster battle action! Detective Yasaka, who retired from the front lines after a certain incident, is approached by a girl named Joshua who calls herself a "space police officer." She tells Yasaka that a space monster has escaped from a transport ship that fell as a meteorite, and asks for Yasaka's help. Yasaka is skeptical, but decides to accompany the search, when suddenly a giant mechanical monster appears...!? A full-scale sci-fi monster battle action story featuring a space girl and an older detective! (Source: Kadokawa, translated)