Only tangentially event-related, but I forgot to hit you up sooner to hash out what the guys would have talked about during their lunch meet-up! Should we assume that they spoke about their homeworlds? If so, Hijikata would have told Lyney (in less 4th-wall-breaky terms) that he basically has a whole AU life as a samurai in Inazuma to look back on (as a result of a dream merge in his previous game where characters basically got AU'd into each other's worlds).

He didn't have a Vision in that dream/AU, but from that experience and knowing some other Teyvatians here (mainly Ayaka, Kaeya, Tartaglia & Yoimiya), he has a good understanding of what those are. He never got to visit Fontaine, so he'd probably have asked some questions about what it's like!