Lucia's body hosts two personalities: one is the original, in-game Lucia, while the other one is the selfish reincarnator.
The reincarnator was too self-centered to even notice OG's face, which was why she didn't even realize this; while the OG was originally programmed (written) to be a girl...
Yeah, while I'm definitely not a fan of Hanamitsuji-ish I can fix him type who insists that everyone should be outgoing and social, there's also no denying that the dude clearly has issues that require professional help, and his denouncement of anything social was his unhealthy mechanism to deal...
She only wanted to live with him if he loves her, and not for other reasons like the practical grounds Jirou was mentioning to her. As she said in the end, the status quo was no longer enough for her, she wanted more, i.e., for him to be her lover.
I feel like we're skipping a few things here that ended up being turned into just 3-page consecutive punchlines, which I think seriously undermines the impact of Rei's story (and very lazily solved Rei being bullied for coming out to someone she really trusted, which I think should've...
It's so nice seeing Miyabi weaponize the normal dumbstruck reactions instead of just sitting there stone-faced as he broke common sense like other OP MCs. He knew he broke common sense and planned to fully use it to its maximum extent, the mad lad.