Related to that, the ending of the 3.0 Amphoreus story (e.g. this stream from Camden Sutkowski (Aven's EN VA), at the 10:14:20 mark) has March's hair turn greyish-white like Eileen's, hinting that Eileen may be related to both March and Cyrene.
Shouldn't have installed a hot plate in the counter if you didn't want your fancy cafe to turn into an okonomiyaki joint frequented by all the truck driver ossans.
It only just occurred to me thanks to the commentary here (assuming I've interpreted it correctly) that, if you combine certain somewhat common headcanons about Sakuya's background with RemiRei, then yeah, you end up with Sakuya becoming effectively Reimu's step-daughter.
This post was deleted when I downloaded the file here, which I downloaded from a Telegram embed so it might not even be the original quality. The commentary was also extracted from that Telegram embed. EDIT Thanks for the source replacement!
Explanation: (Parent image) "Nai nai" basically means "Granny" in Chinese. (This image) "Jie jie" means "older sister" in Chinese, implying Wu is older than Yang, but is still relatively young.
