Kiku Crest Luger P08

The Kiku Crest Luger P08 is a recoil-operated semi-automatic pistol used by the German military in WWI and WWII which has been marked with the "Kiku crest" emblem. Yuriko Takagi owns a model of the Luger P08 with a removable stock and a 32-round drum magazine. Yuriko gives the gun to her daughter Saya Takagi before the group leaves the Takagi Estate.

Overview
It is a German Pistol, made for German officers before the Walther P-38. The magazine varies for every variant. Her particular seems to be standard (but modified in the anime to have a drum).

Summary
Saya is given one by her mother before running from the estate. She is only seen using it once, although always carries it around in her hands. She soon goes to Kohta and complains how she can not use her Luger, in which she is given an MP5 found by Kohta.