A leader of (odd looking) lions puts a drop of magic liquid on his face to look like a person who might resemble someone else. The leader of lions is going incognito, so he needs to resemble a person who is not himself. He takes this drop of powerful face paint and transforms.
The reason he doesn’t resemble the same person anymore is because he actually resembles a horse now. The leader is now a horse! Listen to him neigh (ね) and stamp his feet. Woah, easy there boy!
Currently there are no similar looking kanji which exist in the WaniKani learning system