Maigo ni Natteita Youjo o Tasuketara, Otonari ni Sumu Bishoujo Ryuugakusei ga Ie ni Asobi ni Kuru you ni natta Ken ni tsuite
Description:
One day, Charlotte Bennett transferred to Aoyagi Akihito's class. Her proper and refined mannerisms and adorable appearance captured the hearts of his classmates, but Akihito calmly takes a step back, feeling that she "lives in a different world." However, helping Charlotte's lost sister, Emma, throws his daily life into upheaval...?!...