Well...that was quicker than I thought...
Nagi getting to the ship was a bit quicker than I thought. But this might be on purpose...as I think we might get our confrontation next chapter. If Nagi gets his wits about him after that last page.
The problem? He might get thrown into the brig for this. And that will make him both another hostage, and make him miss his exam. (Expect a shot of Hiro looking at an empty chair...)
As well, we might see Erika blame herself for this...which might lead to a kiss somehow. Remember too, this isn't Sosuke's ship, it's Rihito's family company ship...which might mean he's also on board. And ready to help.
One thing you noticed was that Sosuke cut off his backstory again, right around the sending off to England. What happened after that? This might be deliberate, as he might finally tell the rest of this after all this crap is done, and there are a lot of unimpressed adults around. (Except Papa Amano. He's still Radio silent, very deliberately.)
Thoughts will be appreciated.