Original sentence: She is a girl who attends the or same elementary school as the two, and she is also the one who causes most of the problems of the plot.Yumiko-chan is the girl who usually causes disbutes between Kemumaki Kemuzou and Ken'ichi Misoba
Edited sentence: She is a girl who attends the same elementary school as the two, and she is also the one who causes most of the problems of the plot.Yumeko-chan is the girl who usually causes disputes between Kemumaki Kemuzou and Ken'ichi Misoba