I wanted to remember the title but I forgot the title. But I still remember some details.

manga summary is about a grade schoolgirl who meets an older woman who claims to be her future self and tells her that her one-sided unrequited crush with an older onii-chan-type guy will not be realized. She is here from the future to help the kid's dream come true

The girl's crush is an older guy who is like a big brother (oniichan type) to her.

I don't remember her name but it was more like a Western rather than a Japanese name.

Please help me remember it. Thank you. .

A new detail is that the main girl might be a magical girl, I think but I am not sure since my memory of that manga is very sketchy.