I have to say that the whole scene on the balcony with that shot of both of them sharing a slipper, or rather one’s standing on the other’s foot... is the most romantic thing I’ve ever seen in yaois/mangas.
http://www.mangago.zone/read-manga/3_ban_sen_no_campanella/mdx/mpn_chapter-1990869/pg-27/
A sneak peak of chapter 6 showing Mary in front of Addie’s room... (▰˘◡˘▰)