Yamakaze has a distinctly "crybaby"-type personality, with a crippling lack of self-confidence in herself or her actions (even denying MVP). Several of her in-game lines relate to fear of bullying, or treating the player's clicking as bullying. Due to the circumstances of her sinking, she also especially fears the night and submarines, and has in-game lines asking the Admiral to hold her hand for reassurance. She also looks up to her sister-ships, Umikaze and particularly Kawakaze, as well as treating Nachi and Haguro as respected seniors. She is voiced by Hashimoto Chinami [橋本 ちなみ].
Yamakaze wears a heavily modified black serafuku with detached sleeves, similar to her sister-ships Umikaze and Kawakaze. This includes a large white stripe on the front of the blouse, blue neckerchief, black pleated skirt with black thighhighs forming zettai ryouiki, and mary janes. She has long mint-green hair tied in a ponytail with a black or dark blue hair ribbon, with long sidelocks formed from parted bangs held off with hairclips and a single strand of hair going between her green eyes.
For Hinamatsuri 2017, she is dressed in a miko-like outfit with an additional robe and the Empress doll's ornament. With the laddle with a spout she's carrying, she is supposed to be dressed as one of the sake bearer dolls.
Her rigging consists of a funnel worn like a backpack, with a mast and life preserver strapped behind. She has a single, twin-cannon turret attached to her left wrist, and torpedo launcher turrets strapped on the outside of either thigh.
Historically, the Yamakaze was part of Destroyer Division 24 at the time of Pearl Harbor, alongside sister-ships Umikaze, Kawakaze, and Suzukaze. Kawakaze participated in covering the landings of IJA troops as well as sinking the USS Shark early in the war. Yamakaze's first and only major engagement was The Battle of Java Sea, where Nachi and Haguro were the largest ships on the Japanese side.
At 19:45, June 25th, 1942, the submarine USS Nautilus struck Yamakaze with a torpedo attack near the coast of Japan, causing her sinking about two hours later, approximately 110 km southeast of Yokosuka.