That's a familiar sight.

RJ you traitor ! You are an Arashio-class Aviation DD, not a Mutsuki-class one !

Myschi said:

RJ you traitor ! You are an Arashio-class Aviation DD, not a Mutsuki-class one !

No, she’s a Mutsuki-class Aviation Destroyer (Hidaka Rina) cosplaying as an Asashio-Class.

Myschi said:

RJ you traitor ! You are an Asashio-class Aviation DD, not a Mutsuki-class one !

FTFY

He's got pretty strong teeth...

RJ shares her voice actress with the Mutsuki class, and this set is tagged 日高艦隊 on Pixiv.

MalusTTK said:

No, she’s a Mutsuki-class Aviation Destroyer (Hidaka Rina) cosplaying as an Asashio-Class.

how is she cosplaying as an asashio-class again?

Cloudian97 said:

how is she cosplaying as an asashio-class again?

Ryuujo hat looks somewhat alike with Ooshio and Arare hats. so Ryuujo is an Asashio class.

Cloudian97 said:

how is she cosplaying as an asashio-class again?

with her hair down she looks like Arashio also

Cloudian97 said:

how is she cosplaying as an asashio-class again?

al_pacino said:

Ryuujo hat looks somewhat alike with Ooshio and Arare hats. so Ryuujo is an Asashio class.

Plus her skirt has suspenders, so when she's not wearing her jacket she looks like she's dressed in an Asashio uniform.