Actually, I've already read up on them a while back. Because back in 2016 I asked someone if she wanted her persona in a picture I'm gonna do in the future. She said yes and that her persona was a Kirin, but she only had a pointy pony for a reference. So I had to look up the creature and had to design a version of her that would fit in with the show and it's style.
Lo and behold that years later, the creatures are not only canon, but what I came up with was eerily similar to what the show ended up doing.