Yuki and her team having some difficulties against a queen and Shiro will soon be like “Hello more bags of experience”.
Will Yuki join Shiro’s celestial court since Shiro has at least one or two spots in it? There is also Yin’s inheritance as well to finish.
So Yuki was wanting to move locations anyways. How nice. Shiro is turning up in time to swat these annoying neighbor queens too, or at least get Winter’s Grace and Yuki to safety if nothing else