Aoi Zaizen is a character appearing in the Yu-Gi-Oh! VRAINS anime. She attends the same school as Yusaku, as well as being in the same class as him. In Link VRAINS, she is a Charisma Duelist under the alias, Blue Angel.
Aoi is a fair-skinned, young woman. She has a bob-cut-shaped, light brown hair and yellow eyes. Her standard attire is a uniform that consists of a slate-colored jacket with a light blue trim, which she wears over a light yellow jumper. Underneath, she has a white dress shirt with a blue tie and heart-shaped clip. Aoi's uniform also includes a short black skirt with black socks that reach below her knee and brown shoes.
Aoi is described as being very quiet on first sight. However, as a Charisma Duelist, Aoi becomes very active in Link VRAINS.
"Aoi" (葵) means "hollyhock", a plant associated with abundance and great fortune and was also the emblem of the Tokugawa family. The characters that form "Zaizen" (財前) can be translated as "before wealth".