A land Witch originating from Fuso, known to everyone as "Ruko". Immediately after graduating Fuso Imperial Army Witch School in Narashino she was assigned to support the 31st Joint Fighter Squadron "Afrika". Upon her arrival to Africa, Ruko was marked as "lost" by the army command, and indeed she was lost for 3 days, trekking through the North African desert on her own to her assigned unit. By the thrid day, she ran into General Rommel, whom himself and his command staff were happened to be chased by a stray large land-type Neuroi. Though Ruko lacked the firepower to deal with it, fortunately Hanna-Justine Marseille and Raisa Pöttgen arrived in time to chase it off. Then she passed out and was carried into the base of the 31st by Rommel himself. Before she enlisted as a Witch, Ruko wanted to pursue career in fashion. Even after she came to Africa, she does hair dressing for various Witches, which Charlotte Leuder especially loves. Her striker unit is a Type 97 Chi-Ha. Unlike most other land-based Witches, Ruko does not carry tank guns. Instead, she uses a Type 38 Infantry Rifle with a bayonet.