A triceratops with a mustache will go on talking forever. Every time you think he's done he says, "Furthermore..." and keeps going. Something about a mustache on a dinosaur makes him kind of a jerk, but he's held in such high esteem that no one ever interrupts him.
Why don't you just interrupt this mustache triceratops while he's saying furthermore? Because he's the Shougun's (しょう) pet. If you interrupt him you'll probably be put to death or something. Just let him keep going and hope he runs out of furthermores to talk about.
Currently there are no similar looking kanji which exist in the WaniKani learning system