Risa Rollins

Risa Rollins (リサ・ロリンズ Risa Rorinzu) was a legendary casino dealer who was known as the Double Rs (ダブル・アール, Daburu Āru ?) and the mother of Rio Rollins Tachibana. Risa taught Rio and Rina Goltschmidt Tachibana her dealing techniques during their childhoods and Risa was the previous MVCD as she has collected all 13 Gates. She disappeared from public eyes and disguised herself as Joker (ジョーカー Jōkā), a masked Gate Holder holding the #2 Gate, in order to hide herself from the Casino Guild and to protect Rio, where later challenges Rio to a Gate Battle to see if she is worthy of challenging Rina again. It is revealed by Rina that Risa allegedly had an affair with Ray, which resulted in Rina's mother falling into a coma. Like Rio and Rina, she, too, has Roll Ruler abilities, and has the most powerful Roll Ruler in the series so far, being able to create an illusion of the Howard Resort (both inside and out) when Dana and Rio were trapped in it.