I came across this post on Twitter:
mirrored 死 from tokyo ghoul:re
I don't really understand what
mirrored 死 refers to, and from the picture I'm still quite confused.
What are mirrored characters? Which common ones exist?
Japanese Language Stack Exchange is a question and answer site for students, teachers, and linguists wanting to discuss the finer points of the Japanese language. It only takes a minute to sign up.Sign up to join this community
That large character next to オッガイ is a fictional "kanji" invented by the author of Tokyo Ghoul to write オッガイ in one character. It makes absolutely no sense outside the work. You cannot type this character using your PC or smartphone. Technically, it's a gaiji.
Obviously it was made by "mirroring" the left part of 死 ("death"), but it's not a common convention at all. In this information age, the invention of totally new fictional kanji is not common at all in the first place. This is nothing more than his unique wordplay on kanji.