Back then, I had—

Lost Kongou before my very eyes. Probably referring to the real battleship Kongou. Hamakaze and Isokaze were escorting Kongou back to port after she was hit by torpedoes from USS Sealion and became flooded. Kongou ultimately sank after her forward magazine exploded.

I promised to protect her to the end, but I couldn't.

I did the best I could've done.

No, I think it's because I didn't put everything on the line.

... I can't afford to lose her again for the second time.

Next time, I won't allow any mistake.