Maybe I haven't watched enough of anthropomorphised firearm anime Upotte!!, because I thought it was best not to get the weapons wet. As such, I'm not quite sure why the gun girls are in bathing suits splashing in the promo for the OVA, set to be released with the limited edition of volume four of Kitsune Tennouji's manga.
See if you can make sense of it...
The Blu-ray and manga are set to be released October 13th.
Because nothing beats crayon drawings of anthropomorphised firearms, a few bonuses from the Upotte fun filled Honnyaku Blog: