[DeepL Translation - needs review] Volume 1 Introduction: Lillian Girls' Academy is a private school for purely cultured maidens. In order to carry on the pure and correct school life, a system called "sisters (suru)" exists in the upper school. After the students pledged to become sisters through a ceremony in which they received a rosary, the older sisters would mentor the younger sisters. Yumi, who had not yet had an older sister when she entered the upper secondary school, was suddenly d...
If you've seen the anime, there isn't really anything interesting in here that wasn't already there. Otherwise it's a perfectly fine school trip story. Since it's Italy there's tons of Italian vocab (of the you'll probably recognize this if you know about Italy variety), plus some 和製英語 & broken English. There's also tons of food mentions, so be prepared in case it starts giving you food cravings. There is a mystery involving Satou Sei that adds a little intrigue, and it's nice to see Yumi & Yoshino group up with Mami & Tsutako during the trip. There is a bit of discussion between Yoshino & Yumi about sisters and rosaries - but it doesn't really add much to what we already know.
I'm looking forward to getting back the main story finally, in the next volume.