Journal of the Mysterious Creatures
Season 1, Episode 7: The Former Demon King
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The seal of the demon was waiting for them when they reach the basement of Yafhrud Castle. They were mistaken as intruders who had come to break the demon's seal and now forced to fight with the defense system.
All Episodes - Season 1
Episode 1
Special Tenant with an Obtuse Mind
Episode 2
Recruited by the Gods
Episode 3
Your Quarrel Target Has Arrived
Episode 4
"Cool" Demon Hunter
Episode 5
There're Ghosts in the Castle! - Part 1
Episode 6
There're Ghosts in the Castle! - Part 2
Episode 7
The Former Demon King
Episode 8
We are going to Space!
Episode 9
Tenant is an Egg
Episode 10
She is really is a Dog!
Episode 11
The Awakening of New Skills
Episode 12
Be a Nice Guy!
Episode 13
New Mission