Nachi is a Myōkō-class heavy cruiser and appears as a supporting character in Kan Colle Season 2: Let's Meet at Sea. Her background is rooted in the historical warship of the same name, which was launched in 1927 and sunk in 1944 during World War II. In the anime, she is portrayed as a ship girl who, along with her sister ships Ashigara and Haguro, works as a teacher at the naval base's school. Nachi is known for her serious and composed personality, which sets her apart from her more timid sister Haguro. She is fond of alcohol but is not depicted as a heavy drinker. Her motivations align with her duty as an instructor and a combatant, contributing to the defensive efforts against the Abyssal Fleet. As a heavy cruiser, her notable abilities include high attack power and strong defensive capabilities, which she applies in naval battles and strategic planning. Her role in the story is primarily that of a mentor figure and a reliable combat asset. Key relationships include her close ties with her Myōkō-class sisters, especially Ashigara, with whom she shares the teaching role. Development is limited in the series, as she remains a steady, disciplined presence without undergoing major personal change. Her serious demeanor and sense of responsibility drive her actions in both the classroom and on the battlefield.