迷子になっていた幼女を助けたら、お隣に住む美少女留学生が家に遊びに来るようになった件について

Akihito's class receives a new British transfer student named Charlotte. His ordinary days change after he helps her lost younger sister Emma. Charlotte lives next door, and the rescue brings the siblings into Akihito's daily life. The three begin spending time together and gradually become closer. The early romance grows from neighborly visits, awkward kindness, and a shared sense of comfort.