|Extra Boss, Figure of the Person of Hourai
Huziwara no Mokou
Abilities: Eternal youth and immortality
A human who has lived forever since consuming the Hourai Elixir.
Long ago, before she became immortal, she was the daughter of an aristocrat. She wasn't allowed to go out in public, so it seems that she wasn't a wanted child. One day, her father proposed to a commoner girl, but was humiliated because she responded by making an impossible request. That girl was Kaguya.
Mokou has hated Kaguya since then, and wanted to take her revenge before Kaguya returned to the moon. She couldn't make it in time, however... She reconciled herself by attempting to steal the medicine that Kaguya left for the emperor of that time.
Oddly, by the time Mokou found the medicine, people were about to throw it into a volcano. She managed to steal it before it was thrown in and consumed it - the Hourai Elixir... That was the last time she was seen in the human world.
Humans who never age can't fit into the human world, so Mokou was forced to live as a wanderer... Humans usually can't survive alone, but she can't die. However, she still suffers from hunger if she doesn't eat and pain if she becomes injured.
Eventually, she chose to live like a forgotten youkai in a desolate place...
Many long years came to pass.
Now, Mokou and Kaguya attempt to kill each other on a daily basis. She was extremely surprised to discover Kaguya in Gensokyo and so close to where she lived. It's no wonder, though; Kaguya left the Hourai Elixir, one of the moon's most classified secrets, on Earth. She could never expect to return to the moon in peace. Kaguya also had to run. Mokou felt relief beyond what she had ever experienced - Kaguya was in the same mess she was!
Mokou still detests Kaguya, and Kaguya still tries to kill her, but neither of them can die forever. These are wonderful days... This broken place is truly a paradise!
And she is alive to enjoy it, how magnificent!