I remember coming across a tidbit of Hsien-Ko's backstory before, isn't her sister Mei-Ling now the ofuda charm on her head? Something like she's the mind(or spirit, I can't remember), and Hsien-Ko is the body?
Anyway, I think this may be the first Touhou/Madoka crossover involving the new characters. Some artists work pretty fast. /(◕‿‿◕)\
Also, relevant to previous discussions comparing Meiling and Yoshika, and Yuyuko and Yoshika.((Note: Miscast_Mage will not be held responsible for loss of time, sanity, and/or purity as a result of searching for safebooru/danbooru(the last link, due to translation notes) or any works located within it))
And is it just me, or is anyone else hoping to see TD's final/ex boss as some sort of necromancer? Hell, even more undead characters that aren't ghosts would be nice...Hmm, a skeleton might be a bit hard to do, a zombie would be rudundant with a Jiang-shi, vampires have already been done... Huh. I can't actually think of any non-ghosty undead to be included. o_O
@Drizvolta: Really, at the end of the day, they're the same thing.