umamusume character prompts — 342 NovelAI character tags

About the umamusume tag

umamusume is a series tag that NovelAI Diffusion can use. On Danbooru it has 117,290 posts, and its best-rated still image scores 1,272. The samples above put the tag at the front of a fixed base prompt with seed 1234, so the differences between tags come from the tag alone.

How each model draws umamusume

V5

Follows composition and expression instructions closely, so the effect shows in a tidy form.

V4.5

Reacts to the tag more strongly, so its effect is easier to see.

ILLUST

WAI illustrious SDXL v17, a local model. Shows how the same tag reads outside NovelAI.

Writing umamusume in a prompt

Put the subject first, then this tag, then quality tags.

Basicumamusume, solo, best quality, masterpiece

With artistwlop, umamusume, solo

The negative prompt and the full settings are on the terms page.

How these samples were made

Every image uses 832×1216, seed 1234, 23 steps and the k_euler_ancestral sampler. The base prompt and negative prompt stay the same for every tag, and only the tag under test changes. Images flagged by the NSFW check are regenerated with a new seed or hidden.

From the Danbooru wiki

Show the wiki text ▾

Umamusume: Pretty Derby is a mobile gacha game developed and published by Cygames featuring horse girls based on famous racehorses.

The game was first announced in 2016 and was initially slated for a Fall 2018 release, only for development to start out from scratch; with the ultimate release date pushed back to Febuary 2021. An English version of the game released on June 26, 2025. A party game spinoff, Umamusume: Party Dash, was released in 2024. The franchise has also received several anime and manga adaptations focusing on different characters and eras of horse racing history.

Entries

Umamusume: Pretty Derby (2018 anime starring Special Week; Season 2 released 2021 starring Tokai Teio, Season 3 released 2023 starring Kitasan Black)
Umamusume: Road to the Top (2023 four-part anime starring Narita Top Road)
Umamusume: Beginning of a New Era (2024 theatrical film starring Jungle Pocket)
Umamusume: Party Dash (2024 minigame-focused spinoff game)
Umamusume: Cinderella Gray (manga with 2025 anime adaptation, starring Oguri Cap)
Umamusume: Star Blossom (manga, starring Sakura Laurel)
Umamusumeshi (slice-of-life spinoff manga)
Umamusume: Peace Peace Cepea Cepea Golshi-chan (gag comedy spinoff manga, starring Gold Ship)
Umayon (4koma with 2020 anime shorts adaptation)
Umayuru (anime shorts, Umayon followup)

Related tags

Gameplay mechanics

Carat
Mood

Groups

Shared costumes

Songs

Memes

External links

Japanese

English

Source: Danbooru wiki · umamusume ↗

FAQ

Does NovelAI recognize umamusume?

Compare the samples on this page. Every tag on this site shares the same seed and base prompt, so any change you see comes from umamusume.

How do I write umamusume in a prompt?

Write "umamusume" near the front of the prompt and separate it from other tags with commas.

Should I use V5 or V4.5?

V4.5 shows the tag's effect more strongly. V5 gives steadier images with fewer artifacts.