Even though I didn't bring Kirishima back?Buuut.*ticked*UggggBut...It's fine.It's mostly your achievements, right?
I am very proud of you for that.Kon-gou!
The promise is about conquering Okino island and unlocking the fourth fleet.Ah no, not absolutely everything. Something within reason....I... didn't... Kirishima...I did promise you, after all...and you did work very hard...Right now!?Even though I promised you, I didn't actually complete it.
Kongou found Hiei in a previous strip, but Kirishima was built instead of found, so technically Kongou didn't complete the quest.