If you happen to meet the Three Spirit Cats on 2F (or 1F, I once faced them in the dining room porch), it will give you the following options: (I'm not sure if I got all of the challenges or rewards).
- If their speech is in green characters, and there's something like ?? (kaifuku, recovery) at the end, then after defeating them some of your cards will be recovered (maybe in terms of amount).
- If their speech is in black (or red?) characters and there's a ?? (keiken, experience) in the middle, then you will get lots of EXP after defeating them.
- If they say something like '???' (dominant power?) then you might have to switch your job to the Knight and simply hack 'n slash them. After this you will get a Sound, or a white cat face icon called ?????? (Tsuyosa o miseta, You showed us strength). The first time you get such a Sound, you will be introduced to a new Reasoning Board called ?????? (Spirits' Droppings)
- Go round, if you catch them and they say some similar thing with that ???, then after victory you will get another cat face but black one, saying?????????? (You showed us strength again).
- If they say something like while you battle you have to switch your battle music (???? senritsu tenkan) and Sigma explains further, then you will have to do so, at least once and beat them. After that you will get a red face called ????? (Kyoku o miseta, You showed us the music?).
- I'm not sure about the last one, but they said that you have to do ???? (job change) and Sigma explains again about that. So you have to change job at least once during battle, and you'll get the fourth blue (or maybe turquoise) Sound called ?????? (Kamioroshi o miseta, You showed us the Spirit Summoner).
Put them all on the Board and enjoy the result ^^
Remember when you access the Equip Menu or Card Menu, you have to tap on Down Arrow button to get to the Three Cats Card. It grants you both the Defend command card and another Battle Music with a special spectrum.