[ Day...sort of looks baffled? Like, partially because Jing Yuan is using some terms he's trying to figure out what they're supposed to mean, but mostly because of how he just immediately launched into problem-solving. In that regard, it's not unlike how Day gets when he's in work mode, but the idea that someone is trying to help him solve problems just like that is...

...Maybe he really has been on solo assignment for too long when he's not used to help just being given like this. ]

Well, the reason why it's this way is kinda, uh, complicated, but it ain't the Maidens' fault. The third option is the most plausible one that I can think of, I just ain't sure where to even start on how.