Default apron appearance:
p4aika, short hair, blue hair, collared shirt, white shirt, short sleeves, apron, red apron, head scarf, hair ornament,
Non-apron appearance:
p4aika, short hair, blue hair, crown braid, hair ornament,
Other outfits:
track jacket, jacket, japanese clothes, kimono, sash, obi,
Aika Nakamura from the Persona 4 anime. She's mentioned a few times by name in the game but only makes an actual appearance in the anime. Since she only appears in the anime it has a strong bias toward that style. The training data includes shots of her in a kimono & Yasogami High School track jacket, but there's not enough for them to really be considered proper "outfits".