Musubi and Tsukiumi are from sekirei. Musubi is one of the characters and is a cheerful powerful Sekirei with enhanced physical abilities. She has the power to generate wings and use them for flight and combat. Tsukiumi is another sekirei who initially was proud and aggressive. She possesses power to manipulate water and control it. Both Musubi and Tsukiumi  participate in the Sekirei plan, a competition where each try to find their destined partners "Ashikabi." 