She managed to land a solid hit on I-401, seriously wounding her, however to accomplish that she had to overload her cannons, which also damaged her own hull. After Kongou deployed her Flagship equipment and I-401 attempted to take a peek at it, Myoukou was reassigned as a sniper. Her original role within this fleet was coordinating the actions between her younger sisters and lesser vessels. Myoukou is a part of the I-401 hunting squad led by battleships Kongou and Hiei. Myoukou is very loyal to Kongou and asks Hiei to protect her no matter what. At the same time, she is against going overboard as she declines Ashigara's idea to blow I-401 up by dumping all of the corrosive warheads they have into the ocean. Myoukou is someone who prefers action, though she is willing to wait, if needed. However, this might not be her normal look as she comments to her sister Haguro that these uniforms are something to boost the fleet's morale and unify it. Additionally, Myoukou wears something resembling an armored bracer on her left hand and an armband with 'Student-council vice-president' written on it. Myoukou wears an asymmetric version of Hiei's 'school' uniform with the left side being noticeably longer than the right side. Myoukou is also the only Mental Model to have a scar. Her left eye is also pink, while the right one is hidden behind an eye-patch. She has short strawberry-blond or even outright pink hair that curls around her face.

She appears as a girl in her early twenties. Heavy cruiser Myoukou has one Mental Model. She's also supposed to have a moderately-powerful Wave-Force armor, but since Myoukou has yet to participate in any battles, this hasn't been confirmed.

These cannons are extremely powerful and about as long as Myoukou's entire hull. Later chapters revealed that she also has a pair of sniper cannons, apparently the equipment unique to her. It appears that Myoukou is similar in design and armament to succeeding Takao-class heavy cruisers: ten main Photon cannons on five turrets, a number of smaller Photon cannons, a number of missile launchers, 12 torpedo tubes, and a Super-Graviton Cannon. The glowing insignia that she has as a ' Fleet of Fog' vessel are pink in color. In anime, Myoukou's hull is dark purple with purplish-pink for superstructure and turrets as well as for a few stripes here and there on the hull's sides. She has three sisters, all of whom have made their appearance within the series: Nachi, Haguro and Ashigara. Myoukou is a ' Fleet of Fog' reincarnation of WWII Myoukou-class heavy cruiser Myoukou.

World of warships aoki hagane mod