maru-yu (kancolle)
マルゆ マルゆ(艦隊これくしょん) マルゆ(艦これ) まるゆ まるゆ(艦隊これくしょん) まるゆ(艦これ)
Kantai Collection's personification of the Japanese army submarine Maru-Yu. Character designed by Kuuro Kuro, voiced by Noto Mamiko.
She is portrayed with parted short black hair and brown eyes. Her default outfit consists of a white one-piece swimsuit with a red encircled "yu" printed on it, diving mask, and a flotation belt. Carries a transport container in her left hand and an FP-45 Liberator handgun.
Historically, the Maru-Yu submarines were of a highly unusual design, and initial tests failed to get the prototype Maru-Yus to actually submerge, causing many Maru-Yu jokes to involve her only managing to get her head underwater while her legs still flail above water. Kiso was nearby in the test runs, and Kiso's crew made jokes about the Maru-Yu's strange shape, causing some artists to treat Kiso as some sort of senpai to Maru-Yu because of it.