Who would modernize Akagi with Kisaragi? I mean, she's a CV, there's not need to up her torpedo points since it's always at max.

For healthier skin, of course :)

The real question is, why act so concerned about modesty while being eaten alive?

Attack On Akagi?

well, I guess when you're eaten alive you could at least keep some of your dignity

Screw keeping dignity, I'd try to go out like a proper member of the Scouting Legion.