MoonFish.
A possible new character. He has one eye closed due to an encounter with a Tokoyami.
Tokoyami
The Tokoyami are mushi that exist in shadows and come out at night. It eats smaller mushi and people's memories. They also contain the Ginko.
Weaknesses
It has an affinity for Light.
Cures
If one is ever swallowed by the Tokoyami, then you must keep one eye closed and be able to remember at least one thing, a name, even if it isn't your own. Then you will be able to escape the Mushi, but only after gaining white hair and your remaining eye turning green.