In my opinion, haunted house was decent and interesting (for the first few rounds before it felt like grinding as with most MMO dungeons) and the yokai summoning aspect was rather unique.

My question, however, is:

I've seen some people running around with pink or even black kijimunas. How on earth do you get those colours?

I am curious too I wasted my first Summoning Card but need the pink and black Kijimuna