Umineko no Naku Koro ni: Siesta 45

Named after the .45 Winchester rifle, Siesta 45’s duty as one of the Siesta Sisters Imperial Guard Corps includes battle control, trajectory calculating, information gathering and data mining. She then sends the info to Siesta 410 who is the main sniper of the group.
Cute cosplay by Marino! I really love all the details she put on her uniform.