Although Yuyuko didn't do much. It was all Youmu anyway. If anything, the only reason we got to see Yuyuko was because Youmu can't ever leave the house without Yuyuko going all "You shall not pass!!!"(jokingly anyway)
SpykeMH said: The others did stop by hakugyokurou to figure out what was up with all the spirits too though. And Yuyuko did point everyone in the right direction.