^ LOL
The cross promotion is real

Still feels weird that she's in the PV but I like how they actually used her as a two-for-one promotion. I know thats probably a paradox but ehh, who said everyone had to be rational o.o
Also, I realized, both Yuugure and Wonderful World have white/blue outfits, it's almost as if they did everything on purpose: Karin, a popular member, replace a member not so big in Japan, have both her group's and MM's singles one after the other, and even have similar color theme in one of the A sides in each song.