Vivy

Vivy is the titular protagonist of Vivy: Fluorite Eye's Song, a 2021 anime series co-created by Tappei Nagatsuki (of Re:Zero fame) and Eiji Umehara (Chaos:Child), and produced by WIT Studio (Attack on Titan S1-S3). In the story, Vivy is an android and the world's first autonomous AI who was created to make people happy by performing as a songstress named Diva. When she meets Matsumoto, an AI who came from the future, Vivy agrees to assist in preventing a destructive AI vs. human war that is predicted to happen 100 years from now.

The show became a hit among users of r/anime subreddit because of its vivid visuals, cute girls, and an engaging plot. In the subreddit's Spring 2021 contest, three Vivy girls reached the elite eight, with the eponymous blue-haired idol android eventually winning the event as the top seed. She will be eligible for Best Girl 9 in 2022.

r/anime bracket contests
Seasonal Salt - Spring 2021 (seed 1)
 * (64) Lilina (Tensura) 1282 - 129
 * (32) Heine (Combatants) 1006 - 213
 * (16) Airi Gotou 1010 - 238
 * (8) Elizabeth (Vivy) 1234 - 123
 * (5) Sayu Ogiwara 1079 - 433
 * (2) Vladilena Milize 1115 - 788

ISML record
Seasonal League - 2021 Spring
 * Elim. round (Approval, max 18): 1305 votes -- 13th/30th, Advanced (Aqua Gem)
 * Group A - 4th, CVP: TBD
 * Match 1: Vladilena Milize (Topaz 1) 859 - 1465
 * Match 2: Nezuko Kamado (Topaz 2) 533 - 1159
 * Match 3: Nagatoro-san (Topaz 4) 1188 - 1135
 * Match 4: Kuroha Shida (Topaz Gem) 1408 - 2080
 * Match 5: Nadeshiko Kagamihara (Amet 3)1027 - 1062