Kirihime Yoruka

Kirihime Yoruka from Saijaku Muhai no Bahamut is the deadly assassin waifu who changes the rules of loyalty. She is a master of the Blade Regression style and was brainwashed by the old empire to kill without question. But Lux breaks her conditioning and wins her over completely. At first, Yoruka is a mysterious stalker who follows Lux around with obsessive devotion after he frees her. In the mecha empire intrigue, she brings ninja-like stealth and swordplay to his side. That change from cold killer to yandere protector makes her scenes very exciting.

In terms of design, she's the perfect fanservice assassin. Her long black hair is tied up high with red ribbons, and her golden eyes cut through the dark. Her super skimpy black bodysuit leaves little to the imagination, which is great for piloting a Drag-Ride. She uses her deadly sword with deadly grace. Yoruka is a full-on yandere when it comes to her personality. She is calm, polite, and completely devoted to Lux as her "master." With that calm smile, she'll kill anyone who threatens him. Fans go crazy for her casual nudity and unbreakable loyalty. It's that dangerous charm and ecchi appeal that get you.

Yoruka's assassin charm makes her wallpapers popular. Artists draw her mid-leap with a flashing blade, hair whipping around dramatically, or lying around naked in steamy poses that are just right for ecchi. In dark, moody styles or bright harem group shots, her yandere stare stands out. Fans who like obsessive, deadly waifus in mecha settings love her. If you like devotion with a sword, Yoruka is the best.