Eh, I thought of it more as a time skip where you see the now abandoned naval base after the admiral was deemed unsuitable for his position and disposed of.
Then again, you could also see it as Yuudachi going Yandere because the admiral told her and her alone (you know, inside the naval base) his real name and subsequently kidnapping him á la type 2 yandere, though the sfx from the fifth panel doesn't sound like breaking glass at all but rather a metal object hitting another hard object, such as the admirals head.
No, like I said, there are rules...*clang*You aren't allowed to tell your name without permission.I'll, like, cherish this for the rest of my life.Thank you, Admiral-san.My name is...Can't be helped then.No, no~Yuudachi, like, wants to call you—by your name too.Admiral-san.