When Aqua and Ruby first heard that they are the reincarnation of Makoto and Hina, they were shocked and did not believe it, but when Ruby realized that Aqua was Makoto, she was very embarrassed, and she had a huge crush on her twin brother, and when she found out that they are lovers in the past, Ruby's feelings for Aqua became even stronger.

Ruby's mind: "w-wh-what is this?? Aqua is Dr. Makoto? The Someone I love.."