Changes
→Personality
===Personality===
Despite her appearance and previously spending a large amount of time in hospital, she is a confident and adamant person, getting annoyed when things do not go her way. This is usually shown when conversing with her brother. Her confident personality assists in her interests which allows her to conquer sports such as soccer, baseball, basketball and boxing with ease. Despite all of this, Rio also shows somewhat of a childish side as well, shown by her terror of cats and calling Reginald a "meanie" when he teasingly refused to get help her remove it. Rio tends to be annoyed when people refer to her as "Shark's sister" instead of calling her by name as indicated by [[Yuma Tsukumo|Yuma]] due to her snapping at him when he continually calls her as such, and especially does not like it when someone insults her brother. This is further seen many times during her Duel against [[Aika Hanazoe|Aika]] as she got mad at her for making a rude remark about [[Reginald Kastle|Shark]].
Despite being occasionally irritated with Yuma for not addressing her properly as "Rio", his personality and playful antics makes her let it slide given that she is thankful to him for helping her brother and being his friend. It is also revealed that she goes very far on things and acts strong because she feels she has to or people may use her as a shield against her brother.<ref name="ep79">{{episode|Yu-Gi-Oh! ZEXAL|79|ref}}</ref> She later shows admiration towards Yuma and Alit as she commented they have amazing Dueling spirit.<ref name="ep86">{{episode|Yu-Gi-Oh! ZEXAL|86|ref}}</ref>
