Uma Musume (“Young Filly”) Anxious to Exit the Paddock in “Pretty Derby”

One of Japan’s most popular new anime games, Young Filly– known as Uma Musume (うま娘) in Japanese- has recently released a new series called Pretty Derby which is gaining lots of new fans regardless of whether they had a previous interest in horse racing.
It is available both as a mobile app and a PC-compatible version (see below for more details).

The Story
Young Filly tells the story of the intense rivalries among energetic, young “horses” who appear in the human form of beautiful young women who compete on a horse racing track. It is one of the latest anime to combine the trends of personification, or gijinka (擬人化), and transformation into beautiful young women bishojoka (美少女化).
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There are no mares in this story. The plot also revolves around trials and tribulations at a horse racing school.
The thoroughbred characters have names befitting of a racehorse. Sometimes “Tokai Teio”, who has the voice of Japanese singer Machico, is pitted against “Special Week”, who has the voice of voice actress Azumi Waki.
They are joined by “Daiwa Scarlet”, who has the voice of voice actress Chisa Kimura, and “Silence Suzuka”, who has the voice of singer Marika Kono. Punters will not be disappointed as the cast of characters includes plenty more novices and sprinters.
Fans’ Reactions
The popularity of Young Filly is growing rapidly throughout Japan.
Suppin tweeted, “I just started playing Young Filly. This game makes time fly by!”
馬娘始めましたー!
— すっぴん (@Sato05346188) April 3, 2021
時間があっという間にすぎるな
このゲーム( ^ω^ )#馬娘 pic.twitter.com/ej3lnxkzQl
Horse fever is being passed down to the youngest generation as well. Hiraku recently tweeted, “My four-year-old son used his legos to construct some of the horses from Young Filly. His work is actually pretty good.”
息子(4)が作った馬娘🐎うまいな🤔 pic.twitter.com/ctqkMYTXrU
— ひらく@FFBE (@FFBE_hiraku) April 4, 2021Sponsored
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Inspiration for Cosplay
Lately, it has become common to see cosplay inspired by Young Filly. These two were recently spotted at the Oi Horse Racing Track near Haneda Airport.
【コスプレ】ウマ娘/オグリキャップ
— 恭☀メガイルミ3,4🐎🍚 (@kyo_wanwan) April 4, 2021
2021.4.3.大井競馬場 東京メガイルミ
\ うまぴょい! /
ハルウララ:けーの @keino0331
オグリキャップ:恭
Photo:けんちゃん @15kenchan pic.twitter.com/VJiOCxDv52
This Young Filly was found in Tokyo’s Ikebukuro District, a local mecca for cosplay.

There seem to be some unintended consequences of the game’s popularity. The game may also be prompting a mini-boom in the Japanese delicacy of raw horse meat called basashi (馬刺し) which is served as sashimi.
Mashiro McQueen tweeted, “It has been a while since I last tried raw horse meat. Thank you, Mr. Horse, every part was delicious. The other day I did Young Filly cosplay, and today I had basashi. I have to thank horses. Tomorrow I will return to Gunma.”
久しぶりの馬太郎…🐴
— マシロマックイーン@4/25えれぽて (@yutatenyan) March 30, 2021
ありがとうの馬…🐴馬の全てにありがとう!そして、ありがとう!!!
一昨日はウマ娘のコスプレをして今日は馬を食べて、馬に感謝しかない🥲
今から群馬帰ります( ˙ᵕ˙ ) pic.twitter.com/w31okaScZi
Game Details
Name of Game |
Uma Musume Pretty Derby (ウマ娘 プリティーダービー) |
Genre |
Role-Playing Simulation (育成シミュレーション) |
Developer |
Cygames |
Available Platforms |
iOS 11.0 or higher, Android OS 6.0 or higher, PC: DMM GAMES |
Release Date |
February 24, 2021 (mobile version), March 10, 2021 (PC version) |
Price |
Free (in-game purchases) |
At the moment, Young Filly is still only available in Japanese, but the manufacturer announced at the beginning of April that a Korean version will soon be launched. They are also planning to sell a version with simplified kanji characters. It is, however, unclear when an English language version will become available.

Game Maker, Cygames, Raking in Profits
Following the success of Young Filly, CyberAgent, the parent company of Cygames, which distributes games, is attracting attention. Their market capitalization has reached the 1 trillion Japanese yen mark (approximately $9.1 billion) for the first time since its listing in March 2000. The main driver is its smartphone game, Young Filly, which is generating a monthly income of 10 billion yen ($91 million) and growing.
Thus, it is likely that the Young Filly franchise will continue to expand. Perhaps the popular series will even be able to feature a triple crown in time for the next Japan Derby.
Links to Japanese Sources: https://news.yahoo.co.jp/byline/kawamurameikou/20210404-00230949/, https://ascii.jp/elem/000/004/050/4050272/, and https://gamebiz.jp/?p=292319.
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Advertise with usNow a self-declared "lifer" foreigner in Japan, Mark is the founder of the Real Gaijin Substack (https://realgaijin.substack.com/welcome). Now based in Oita Prefecture in Kyushu, Japan, Mark is currently self-employed as an independent contractor focused on management and marketing consulting in the healthcare field. He had a long career at an American medical device manufacturer based in Chicago. Mark helped to found and ultimately run its wholly owned subsidiary in Tokyo. He completed a year-long Fulbright grant at Kyushu University in Fukuoka, Japan. Mark is also a 1990 graduate of Bates College in Lewiston, Maine, U.S.A. where he earned a BA in both History and the Japanese language. During college Mark was an exchange student at both Waseda University and Nichibeikaiwagakuin in Tokyo where he studied intensive Japanese. Mark speaks business level Japanese and intends to remain in Japan indefinitely where he has lived for a total of more than 20 years. He likes to write about his experiences and has been a frequent contributor to the on-line media resource Japan Insider (https://japaninsider.com/) for which he typically writes about business-related issues, the unique culture of Japan, and travel. Mark likes the outdoors and is passionate about hiking, bicycle touring and marine sports—particularly sailing and windsurfing.