dryness squad
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Fanmade group of Blue Archive characters, consisting of Urawa Hanako, Ushio Noa, Wanibuchi Akari, and Izayoi Nonomi, all portrayed as being extremely sexually aggressive towards Sensei to the point of milking him dry (hence the name). Known as the "Predator Four Heavenly Kings" in Japanese and the "Dryness Squad" in English.