Depuis que j'ai secouru une fillette égarée, la ravissante étudiante étrangère d'à côté vient souvent traîner à la maison.

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...?!