Third of the four Shimushu-class Coastal Defense Ships as depicted in Kantai Collection. Named after Ishigaki Island, the second-largest island of the Yaeyama Island group which is part of Okinawa Prefecture. Like Shimushu and Kunashiri before her, her official illustrator is Ugume. Her voice artist is Takao Kanon [高尾奏音].
As a coastal defense ship, her class is even smaller than destroyers, and as such, she is portrayed as an "elementary school student" character, even younger than the generally "middle school" appearances of the destroyers. Ishigaki comes off as having a similar personality as Tsushima: mostly cool and laid back.
Her rigging involves hip-mounted platforms, with single-cannonturrets on her sides with adjacent anti-air guns, and a mast and smokestack to her back. On her ankles, she has depth charge launchers.
The historical IJN Ishigaki was commissioned in February 1941, mostly patrolling the northern waters of Japan and escorted convoys. She sank the US submarine USS S-44 in October 1943 during a gun fight, but was later herself sunk in May 1944 by another American submarine, USS Herring.
