Also known as: 海峡夜棲姫, 海峽夜棲姬
First boss of map E-4 in the Fall 2017 Event in Kantai Collection.
Almost certainly an Abyssal version of Fusou (Kancolle), considering the numerous visual similarities and the fact that she and her sister ship Yamashiro (Kancolle) both sunk in the Surigao Strait (which is also the location that Map E-4 represents).
Frequently paired with Night Strait Princess (Black), the Abyssalized version of Yamashiro.