Uma Musume - The Story of a Trainer Who Has Ended Up Becoming an Uma Musume in a What-If Scenario (Doujinshi) summary: Trainer turned into an m** musume, due to strange circumstances!? What if the Trainer I've been featuring on my Twitter Uma Musume comics turn into an uma musume himself? That's the story. This book compiles the comics I've been uploading onto SNS, where a trainer turns into an uma musume. The new Extra pages and Illustration included add up to 20 pages.