Dark Clouds The navy begins sending out convoys to Singapore to collect badly needed supplies, and the destroyers of Torpedo Squadron 2 are assigned to various escort duties. Shigure is glad to see one of her friends, the carrier Ryuuhou, has returned to Sasebo. Ryuuhou tells her that she has been assigned a mission to transport brand new fighter planes to Taiwan to bolster the island's defenses. Shigure, Isokaze, Hamakaze, and Yukikaze are assigned to escort Ryuuhou, but Yukikaze falls ill and is unable to participate in the mission. Despite being one destroyer short, the convoy decides to head out anyways. En route to Taiwan, the convoy sails into a rainstorm where they are ambushed by multiple Abyssal submarines. The destroyers are able to repel the first few waves of attacks, but eventually run out of depth charges. At that moment, a squadron of coastal defense shipgirls arrives and eliminates the remaining submarines, clearing the path for the convoy.