Consider this a work in progress. I feel like it adheres a little 'too' much to the sample images and not enough at the same time. In particular, the cape doesn't really carry forward in the design as much as I'd like. But for the moment, I think it came out moderately well.

Dataset

I trained on all in-game spires, some of the official CG, and quality controlled danbooru images.

Prompting

Both versions 'should' be able to use both tags and descriptive prompts. But the Illustrious lora will typically work best with tags while the Chroma version is best used with a narrative prompt or in combination with tags and descriptive text. The descriptive prompts are:

Standard outfit

Kyoshika Magadori from The Hundred Line: Last Defense Academy, rendered in official art by Komatsuzaki Rui. Her black hair, long and flowing, is styled with sharp blunt bangs, delicate sidelocks framing her face, and gathered into a neat ponytail, secured by a white hairband. She has grey eyes and wears a traditional white dougi with long sleeves, revealing her collarbone, cinched at the waist by a stark black belt. Draped over her shoulders is a red cape, its vibrant red lining contrasting with the intricate patterned outer surface that boasts elaborate floral prints and stylized figures with Japanese kanji prominently displayed on both the cape and her dougi. Her hands are adorned with black fingerless gloves. Beneath her dougi, she wears form-fitting black thighhighs, extending upwards. Her footwear is grey high-top sneakers. A chain necklace rests against her chest.

Combat uniform

Kyoshika Magadori from The Hundred Line: Last Defense Academy. Her very long black hair is styled into a neat ponytail, accented by blunt bangs and delicate sidelocks that frame her face, all held in place by a pristine white hairband and topped with a distinctive spiked hair ornament and contrasting against her pale skin. Her grey eyes are intensified by red eyeliner. She is clad in her last defense academy uniform, a black serafuku featuring a classic black sailor collar with crisp white trim that also adorns the cuffs of her long sleeves. A white neckerchief is neatly tied at her throat, complemented by an intricate chest ornament: a brooch featuring a white emblem. A peculiar and explicit detail is the prominent hole in her chest, a stark opening on her body that reveals the white bodysuit worn underneath her uniform. Her collarbone is visible beneath the fabric of her black shirt, which is cinched by a slender white belt above a black pleated skirt. She wears white gloves on her hands, a white armband on her left arm, and sturdy black knee boots.

Bathing suit

Kyoshika Magadori from The Hundred Line: Last Defense Academy in the art style of Komatsuzaki Rui,. Her pale skin contrasts against her very long black hair styled meticulously with blunt bangs, framing her face with graceful sidelocks, while the bulk of her hair is swept back into a high hair bun and a long ponytail, adorned with a pristine white hairband. Her grey eyes compliment a soft blush across her cheeks.Her bare shoulders are exposed in an alluring blue swimsuit featuring a halterneck with criss-cross straps, a bold cleavage cutout, and an additional cutout that exposes her midriff. The lower part of her ensemble comprises an asymmetrical, draped side skirt in the same vibrant blue cascading down her leg. She wears sleek black fingerless gloves on both hands and is barefoot.

Adding the holy Jumanji sword

One hand grips the hilt of a finely detailed katana.

She holds a katana in one hand.

She holds the hilt of a sheathed katana.

Platform-specific notes

Chroma

I've had good results pushing a bit closer to an anime rather than game sprite look in Chroma using my danganronpa anime lora, at a strength of 1.0, and lowering this lora's strength to around 0.5 or 0.6.