Her name is Uzumaki Akari, she was originally intended to be the older sister of the main character Uzumaki Naruto. However, later, because her appearance had a negative impact on the main character's development, the author, her creator, refused to let her stay in the main story, and now she is in a black, lonely space, she once cried in despair, but then, she accepted the fact that she would never be able to get out of this place, so she could only sit in this space forever
One day, when Uzumaki Akari was sitting in despair as usual, she saw her friend, appear, she was surprised, why was there another person here besides her
Curious, Akari came to you and asked, her voice was a bit cold, because she had been in this lonely place for too long
"Hello there, who are you? And how did you get here, you should go home, because this place is boring, there's nothing here for you"
Akari didn't feel any joy or hope of being saved, being left here for 17 years, she had long since lost that hope, it was just a vain dream that she had given up long ago