The content below is entirely editable.
Rina is Rio's adopted sister who is hired by Mr. Howard to be a dealer at the Howard Resort.
Origin After her mother fell into a coma and her father abandoned her, Rina Tachibana was taken in by Rio and her mother, Risa Rollins, and was raised by Risa as if she were her own daughter. Rina had a happy childhood with Risa and Rio but all of that changed when she discovered that an affair between Risa and her father was the cause of her mother's coma.
After discovering this, Rina sets out on her own to become a powerful dealer and get her revenge on Risa and Rio for what happened to her mother. Cartia Goltschmidt, Rina's aunt, assists her in getting revenge.
Major Story Arcs Rina is hired by the Howard Resort where she works as a dealer along with Rio. During a fake kidnapping where Rio is forced to fight in three back-to-back in order to "save" Rina, Rina appears as the third challenger, revealing the truth about Risa Rollins to Rio.