[Secretary Ship: Suzuya] -Is head over heels for the admiral. -Will not hand over the secretary ship position to anyone else. -Affectionately calls the admiral "Tora-nii". -Lots of expressions.

[Ooi] -Cool and unemotional. -Knows how to deal with Suzuya. -One of the seniors in the fleet. -A considerate person.

Characters that appear in this naval base

[Hatsuyuki] -Shiranui's senior (guiding). -Is unknown whether she's doing a fine job guiding. -Gets in hikikomori mode when nobody else is looking. -However becomes quite active(?) whenever Shiranui comes around.

[Shiranui] -Hatsuyuki's junior. The very newcomer in the first fleet. -Likes cheap confectionary. -Admires Hatsuyuki.

[Akagi] -Was the secretary ship before Suzuya came ever since the admiral was assigned. -Comforting big sister type. -Shares the same room with Mutsu.

[Mutsu] -Big sister type person that likes to tease the admiral. -Is the center of admiration from other shipgirls. -Is on good terms with Akagi.

First fleet

[Tenryuu] -Weak against mature big sister-esque people. -Likes older people. -A fan of Mutsu.

[Vice Commander] -Shinonome's assistant. Capable of commanding the combined fleet. -Is married with Kirishima-san. -Has no appearance this time.

[Shinonome Harutora] -The admiral. In spite of what he looks like, he's still the boss of the naval base. -Unfriendly, has a scary face. -Boards on an escort ship and sets out together with the shipgirls when they are sortieing.