「Abyssal Ships」...?

I'm Chikuma.

I'm Heavy Cruiser, Tone

Yes

"Ships that Inhabit in the Abyss"

「Tainted Ships」「Unknown」「Unidentified Cruisers」 or simply「Enemy」

Naval districts and anchorages are starting to standardize those various names.

Furthermore, they try to categorizing them using iroha order by estimating firepower and special characteristics.

For example, those you encountered the other days in the report would be Ha-class destroyer, Ho-class light cruiser and Ri-class heavy cruiser.

After receiving the report of their appearance, we came here from Sasedo Naval District to help.

Pleased to meet you.