Leo and Luna

Rua and Ruka ( 龍亞(るあ) & 龍可(るか) Rua & Ruka) are a pair of twins who aid Yusei Fudo, whom they adore and support in his duels while making fun of fate. Rua is the lively and blundering one, and Ruka is the calm and collected sister.

Rua is the older twin. He is said to cry when he loses a duel. He loves and protects his sister.

Ruka is the younger twin. She gets tired right after a duel.

They both seem to have a Dragon Birthmark as seen in the Opening.

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