Because of her appearance, Fujiwara-san is assumed to be good at classical literature, even though her talent is in English, having replaced Olivia in the English speech contest and won. She's exasperated by all of her classmates who come to her to ask for help with classical literature during break time, and she comes to Olivia for someone to speak in English with. Olivia becomes fearful, suspecting that Fujiwara-san has figured out that she can't speak English..
It's just an extension of saying hi.
"هذا مجرّد امتداد لكلمة "مرحباً
Ist doch schließlich nur
’ne andere Art der Begrüßung.
Es como una extensión del saludo.
Es como una extensión del saludo.
C’est une manière normale
pour se dire bonjour, entre nous.
Alla fine è solo un'estensione di un saluto.
É tipo um oi mais rebuscado.
Это же ерунда! Всё равно, 
что сказать: «Привет»!