Well, she's revised Umikaze-class 1st ship after all...
Wiki said:
While Umikaze is officially a Shiratsuyu-class, she and the sister ships following her were sometimes referred to as 'Umikaze-class', with the distinct difference in bridge design from the older Shiratsuyu-class.
Hm? Kisaragi?I've even got more night-time firepower, too!Hello, Umikaze? I'd like to ask a favor of you...But I'm better when it comes to daytime firepower!Shiratsuyu's Observation Day, PostscriptI'll be right here.I'm glad you caught on so quickly.I'm sorry, I'm sorryIt's fine.