Skye Zaizen, known as Aoi Zaizen (財ざい前ぜん 葵あおい Zaizen Aoi) in the Japanese version, is Yusaku's classmate and the younger step-sister of Akira Zaizen. In LINK VRAINS, she is a popular Celebrity Duelist under the alias Blue Angel (ブルーエンジェル, Burū Enjeru). However with the Ignis becoming a threat, Skye took on a new avatar known as Blue Gal (Blue Girl (ブルーガール, Burū Gāru) in the Japanese version). After partnering with the Water Ignis Aqua, Skye takes on a new battle avatar known as Blue Maiden (ブルーメイデン, Burū Meiden) to fight against Lightning and save Miyu Sugisaki.