Seems like the admiral here isn't a degenerate that sinks ships, like a certain Abukuma sinker in Winter 2018 E4...

Also seems that Kawashina subscribes to the policy that as long as you used a damecon, you aren't a kuso admiral.

My translation hit a snag halfway through, so any wandering translators, please give it a lookover and I apologize for mangling it up!

After reading the pixiv's comments, I just realized Kasumi's words are supposed to be interpreted as "I haven't sink yet; do you think I would let the others sink?"

Reading this made me feel particularly guilty
In some cruel twist of irony, the First Shiratsuyu I obtained was the First and only ship to have sunk under my watch…

Califinocations said:

Reading this made me feel particularly guilty
In some cruel twist of irony, the First Shiratsuyu I obtained was the First and only ship to have sunk under my watch…

Ichiban (to sink)... ouch.