For other forms of Reina, see Reina (disambiguation).
Reina Yuki
Reina Yuki

Reina is the younger sister of Jaden and a uses a "Gem-Knights" deck.

Personal data
Nicknames Rei
Age 17 (Trials of Darkness)
21-22 (Legend of the Dragons)
Gender Female
Species Human
Deck Gem-Knight
Occupation Student of Duel Academy
Morality Good
Living status Alive
Additional info
Birth date 22 November
Star sign Sagittarius
Place of origin Domino City, Japan
Residence Domino City, Japan
Ethnicity Japanese
Nationality Japanese
Hair color Caramel brown, red tips
Eye color Amber-Brown
Skin color Average
Height 5"2'
Love interest Kai Reid
Relatives Arata Yuki (father)
Cori Yuki (mother)
Kurai Yuki (older brother)
Jaden Yuki (older brother)
Ren and Shin Yuki (cousins)
Haru Yuki (uncle)
Akemi Yuki (aunt)
Partner Gem-Merchant
Affiliation Yuki family
Friends Adena Fuego, Daniel Valor
Enemies Darkness, Yubel (formerly), Viper
Powers and skills
Powers Duel Spirit communication
Skills Dueling proficiency
Weaknesses Protective of brothers
Equipment Duel Disk
Production notes
Created by PrincessAnime08
Appearances Trials of Darkness
Legend of the Dragons
Next Generation
Unexpected (alternate counterpart)
Caught Between Two Worlds (alternate counterpart)
Duel Academy Chronicles Trial by Shadows
My brother may not be smart in the learning area, but he excels in the dueling area!
Reina Yuki

Reina Yuki is the younger sister of Kurai and Jaden Yuki and a second year Obelisk Blue student of Duel Academy (when Jaden is a third year). Reina duels with a Gem-Knight deck with her main duel spirit being Gem-Merchant.

Physical description

Reina is very slim with a petite build; she has she has long caramel-brown hair with red tips and amber-brown eyes. She wears the normal Obelisk Blue girl uniform, but with a pair of shorts underneath.


She is a fierce and tough duelist and loves dueling very much, she has very friendly outgoing and optimistic personality, but get her mad and you’re in for a world of hurt. She is also an all-out tomboy, and hates acting girly or even wearing anything that remotely looks girly. She is very intelligent she only pretends to be clueless.



  • Duel Spirit communication: Reina has the power to see and talk to Duel Spirits. 


  • Dueling proficiency: Reina is a skilled duelist, able to work with anything she has on hand.
    • Adaptability: Reina able to quickly adapt and change her current plan if needs be.
  • Normal level intelligence: Reina is smart in her own way, and does what she can to turn in her homework on time.


  • Protective of brothers: Like any sibling, Reina is very protective of her older brothers and will do anything to keep them safe.


  • Academy issued Duel disk


Reina was born to Arata and Cori Yuki as their youngest and only daughter and the younger sister of Kurai and Jaden Yuki. She ended up going to Duel Academy as well, but a year younger than Jaden. She did know about him leaving Duel Academy and worried about him. She only knew about him leaving wh en he returned to defeat Nightshroud and noticed a girl with him but paid no mind.

Legend of the Dragons

Reina turned in Legend of the Dragons, first seen screaming at Jaden on the phone making him return to Japan to attend Kurai's wedding to Brooke Rivers.


Reina runs an Gem-Knight Deck. Like Jaden, they involve the usage of their own version of Polymerization, Gem-Knight Fusion, to create stronger monsters.


The Ties That Bind series
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