Finding one shot manga that is about ta girl who went to the future to know if her love life turn out well. Then she met her classmate, a boy. Then in the end of the chapter, she asked him how did he knew that she was from the past then the boy answered that her future self told him about it. Then she came back to her own time. It looks like that boy is her soul mate. When I read it it seems like its not yet finished more on on going 5-6 chapter manga? I think. Please help.