Finally I caught up, too many misteries that I couldn't wait for the anime to solve.
Mimihime saw him as a hiruko while speaking to him while they were in the medical ward; she said she felt she could see the future and tried really hard to stop seeing him as that slug.
I never understood why toyo's CEO never got surgery to remove that portion of flesh that looks absolutely stressful. Imagine washing your face and getting tangled with it.