Black Kraken

Black Kraken (블랙크라켄) is a octopus-themed ghost that appeared in episode 19. And it's nickname is Polluted Octopus Spirit.

Black Kraken
Episode appearance	19
Season	5
Aliases	Octopus Ghost Kumel (His owner, Jae-jun)
Identity
Gender	Female
Eye color	Yellow
Status	Deceased
Misc
Based on	Octopuses