The only time I rode a boat, I started feeling very seasick while it was still docked at the shore. But as soon as the boat set off, the nausea disappeared, and I had no trouble for the rest of the trip.
Yeah, seasickness is a bit weird. People react differently. In your case it might just have been better because the boat was moving, since that has a different feeling to it. It also depends on the size of the boat. Again, not always, but it's generally worse in medium and large boats, rather than small boats. Huge ships can also be different, since they're not nearly as affected by waves.
Until now, I was on Team Bona too. But after this chapter, Zenjirou's reasoning made sense to me.
It's very much of a, "let her decide," kind of situation. If she wants it, great. If she doesn't, go with the backup.
This mangá really stands out among harem stories. There are some where the MC says he’s not into the idea at first, but quickly gives in to lust. But here, it seems like Zenjirou is going to stay faithful — romantically — to his wife until the end.
More often they never seem to be particularly interested in the girls romantically at all. It's just the girls fighting over the MC.
As Queen Aura herself said, Lucrezia is just a "pawn." Her only purpose is to create a connection between the two kingdoms. I don't think she actually needs to be competent at anything in order to become a concubine.
No, but she's easier to control if she isn't that competent at politics. Which can be a benefit to them, but also makes her more of a risk, since it can turn the other direction.
And if you consider the effort Lucrezia is putting into winning over Zenjirou, you could say she’s actually doing a pretty good job at that. In fact, it’s precisely because of that effort that she now seems to be the one chosen to become the MC’s second concubine.
I think that has less to do with her efforts, and more to do with her just being a convenient option.
