Aoi Kureha is a member of the rap group VISTY and performs under the MC name AOI. He is known for his handsome features and courteous fan service, which have earned him the nickname of the prince of VISTY. In public, he appears cool, level-headed, and composed, but beneath this calm exterior he carries deep personal troubles. His awkward and reserved nature makes it difficult for him to open up about these burdens to those around him, leading him to keep his struggles to himself.

Aoi secretly admires Anne, a member of the group BAE, for her ability to live life freely and outside the constraints of convention. This admiration reflects Aoi's own desire to break free from the pressures he faces. His personal trauma is a key element of his character, and some fans have speculated that he may be genderqueer or transgender, though this is not explicitly confirmed in official materials.

In the story of Paradox Live The Animation, Aoi participates in the Phantom Live battles as a rapper, using his phantometal accessory to channel his emotions into his performances. His phantometal is the Unstoppable Wristwatch, a watch with a butterfly motif that he activates by kissing the face of the clock as though in prayer. This device allows him to manifest his phantom on stage during rap battles.

Aoi is sixteen years old, stands 170 centimeters tall, has blood type A, and his birthday is April 19. He is both an idol and a high school student. His hobbies include cooking, and he has a notable weakness for medical checkups, which he dislikes. Within the VISTY group, he maintains a composed role, though his hidden emotional depth often surfaces during intense battle moments. His key relationships include his fellow VISTY members and his quiet admiration for Anne, which hints at a longing for greater personal freedom. Over the course of the series, Aoi's development involves learning to confront and share the troubles he usually keeps locked away.