Daiichi Rubyダイイチルビー

"The Brilliant Young Lady"

"My name is Daiichi Ruby. To be supreme is the duty of my family. I will strive to fulfill my duty."

Daiichi Ruby
Daiichi Ruby
Daiichi Ruby
Daiichi Ruby

Victory is a must. An Uma Musume of a brilliant family.

She's the daughter of a "Noble Family" whose name is well-known around the world. She always tries to behave in a noble manner, befitting of her family name, and her solemn words and actions often give the impression of being somewhat unapproachable.

Birthday: Apr 15

Class: High School

Dorm: Ritto

Roommate: K.S.Miracle

Ears: Sometimes when she hears music, she listens very carefully.

Tail: The end of her tail is naturally coiled into a noble shape.

Family: She has pictures with her mother and grandmother in her room.


  • People have heard that "The Young Lady's dog, Sapphy, is super cute"
  • The price of one of her hair ornament ribbons is enough money to buy a complete set of school uniforms.

Height: 141cm

Three Sizes: B77 W53 H76

Shoe Size: L19cm, R18.5cm

Weight: Splendid progress

Preferred Ground: Turf

Preferred Distance: Mile, Short

Preferred Strategy: Betweener, Chaser

Strengths: Handling fountain pens, chess

Weaknesses: Rain, clothes that don't fit

Calls self: Watakushi (私(わたくし))

Calls Trainer: Anata (貴方)

Nicknames: Ruby, Ojou

Voiced by: Carin Isobe (礒部花凜)

Carin Isobe

Other Roles:

  • Kogane Tsukioka (The iDOLM@STER)
  • Saki Tenma (Project Sekai)
Daiichi Ruby

Sex: Mare

Record: 18 Races, 6 Wins (2 G1 Wins)