Yui deserves better than to be one of my first poorly trained models, so I at least made a new version :) Weight 1 is ok for this one. Hands come out pretty poorly but it works otherwise fine. Also I wanted to give her at least one extra outfit so I went with classy prom dress.
School uniform - yuigahama yui, school uniform, white shirt, blazer, neck ribbon, open jacket, plaid skirt, kneehighs
Prom dress - yuigahama yui, earrings, collared shirt, sleeveless shirt, black skirt
Lora of Yuigahama Yui from Oregairu.
Use phrase yuigahama yui and weight between 0.6-0.8. For a proper look add school uniform. You can add jacket to prompt or negative prompt, depending how you want her. If you're getting hair bun in wrong place, you probably need to raise the weight of lora.