Umamusume: American Trainer’s Lascivious Tales
Series Metadata
Listing Series
-
Umamusume: American Trainer’s Lascivious Tales by Gaijin_Trainer
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime)
10 Dec 2025
Tags
Summary
This is an NSFW continuation of all of the stories under "Umamusume: American Trainer's Journey." This series acts to separate the SFW with the NSFW content that may be present between the American Trainer, Mark Langsby, with his trainees.
**Needless to say, all characters depicted as Mark Langsby's trainees are depicted to be 18+**
Series
-
Tachyon: Racy Experiments by Gaijin_Trainer
Fandoms: ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Video Game), ウマ娘 プリティーダービー | Uma Musume: Pretty Derby (Anime)
15 Dec 2025
Tags
Summary
This is an NSFW continuation of all of the stories under "Umamusume: American Trainer's Journey." This series acts to separate the SFW with the NSFW content that may be present between the American Trainer, Mark Langsby, with his trainees.
This series is the NSFW continuation of American Trainer's Journey - Agnes Tachyon
https://archiveofourown.org/works/70917496/chapters/184402486**Needless to say, all characters depicted as Mark Langsby's trainees are depicted to be 18+**
Mark Langsby never intended to become an umamusume trainer - let alone becoming a romantic and sexual partner with his aspiring trainees!
This series outlines the erotic tales between Mark Langsby and his trainee, Agnes Tachyon. Check the notes on how the continuity between this series and the SFW story will be described (if available).Series