Javelin, Z23, Laffey, and Ayanami help Sirius practice as a maid for an upcoming party, while South Dakota and Massachusetts practice the piano.
アズールレーン びそくぜんしんっ! 誇らしき母港に祝祭を, : Azur Lane: Bisoku Zenshin Special, Azur Lane: Bisoku Zenshin Episode 13 Azur Lane: Bisoku Zenshin Supplementary Episode
