Shiina Mashiro was still in England at the moment, though by the looks of it, it was almost time for her to leave for Japan.
Coincidentally, there was also someone named Rita in this world, though her name was Rita Ainsworth. This Rita was Shiina Mashiro's roommate in England and had always been Shiro's guardian while she was there. She was also the one who taught Shiro how to use a computer. To Shiro, Rita was her favorite friend. However, Shiro's terrifying talent for painting placed immense psychological pressure on everyone around her, including Rita. No matter how hard they tried, they could never catch up to Shiro. The pressure and blow had even made Rita swear to give up painting, the thing she regarded as her life.
Because of that, this "Rita" also hated Shiro deep down, believing that Shiro's existence was the reason she had stopped painting. Yet later in the anime, she came to terms with it and realized that she still loved Shiro most of all—and loved painting most of all.
Shiro's talent for painting was terrifying. At her current age, she was already a world-class genius painter and had even shaken hands and taken photos with the sitting Prime Minister of England.
Rita now effectively replaced the Rita of this world and had become Shiro's guardian.
At least, for the current Shiina Mashiro, there were only two things in her world. The first was painting... and the second was Rita. It was just that Shiina Mashiro lacked the thoughts and notions of an ordinary person, so she could not express it.
Taking care of... Shiina Mashiro. Could it be said that... Ai-chan had found her a "great identity"?
The same name, along with responsibilities like those of a maid...
However, if it had been