Lastismun

Lastismun (ラスティスムーン) also known the nickname as Lasti, is the daughter of Doraim the Gatekeeper Dragon andGraffalun the White Dragon. She has also been given the title, the Crazy Dragon (/クレイジードラゴン) due to her fiery personality which feared everyone, and the Trader Dragon due to her duties she carries out for the Taiju Village.

Appearance
In her human form, she appears to be a young woman with dragons horns and tail. This is due to her being young and unable control her transformation to human form correctly.

Personality
She's known to have a fiery personality which scares everyone.

Fraurem Chrome
She made unlikely friend with Frau, a young Demon girl.

History
Young daughter of the dragons, Lasti would be drawn to the village of Taiju due to thinking her father was cheating on her mother. Only to find he was delivering gifts to the new born son of Hiraku Machio. She would nearly be killed by Hiraku due to him believing Lastismun was a hostile dragon, not someone feuding with her father.

After her mother is nearly struck by Hiraku's Almighty Farming Tool in spear form, her mother orders Lasti to remain in the village to make sure Hiraku never aims a spear at a member of the Dragon Tribe again.

Trivia

 * Hiraku is technically both her husband an uncle.