Naval Stars Online Vol.1 #1-#8

Mikasa (三笠)

A legendary battleship that has lived for over 120 years. She is stationed at the Yokosuka Base of the Japan Cyber Force. She is admired and affectionately addressed by younger ships with titles such as "Mikasa-onii-sama," "Mikasa-senpai," and "Mikasa-dono."

Yamato (大和)

One of the largest battleships in history. For some reason, she possesses two forms: an everyday appearance resembling a high school girl, and an "ancient form" revealed when she awakens.

Tommy Kris Protoia(トミー・クリス・プロトイア)

A dual-talent who works as both a primary school pupil and the BayStars’ exclusive announcer… but does he have other secrets as well—!?

Admiral / Nagisa Takatani(高谷 渚)

A young genius who became the Admiral of the Cyber Force's Yokosuka Base at the age of 19. The superior officer of Mikasa and Musashi.

Ronald Reagan

Assigned to the U.S. Cyber Force's Yokosuka Base. She has a gentle personality and is conscious of maintaining an air of refinement.

George H.W. Bush

Assigned to the U.S. Cyber Force's Norfolk Base and currently making a port call at Yokosuka. She has a spirited, down-to-earth personality.

Shikishima(敷島)

Mikasa’s eldest sister. An older sister who adores Mikasa.

Asahi(朝日)

Mikasa’s second eldest sister. Although she is somewhat exasperated by Shikishima, she is concerned about Mikasa.

Hatsuse(初瀬)

Mikasa’s older brother. He has a gentle and kind-hearted nature and does not like fighting.