Zuikaku-chan, how do you know such grown-up terms?

Likely from having the memories of an adult.

Kuso_Teitoku said:

Zuikaku-chan, how do you know such grown-up terms?

NWF_Renim said:

Likely from having the memories of an adult.

Which is odd, because she has a distinct manner of speech - she never uses kanji, only hiragana. (This would make translation much more of a guessing game if she didn't normally use only the simplest 'childish' language.) By contrast, even the abyssals use kanji with their katakana.

It's basically the one complex phrase she's ever spoken. She didn't even understand what marriage was.