This is a planet named "Biotian" by a certain god; or "world".
On a sunny morning, Laqiji ended his boring mercenary life for several years.
A magical letter from a border city of the Ming Mei Empire was sent by her friend. The letter mentioned the conversation that Lachiji had with her friends before leaving Reno, in which she had inquired about the whereabouts of the family relics; and the arrival of this letter pointed her next target directly at this cold city in the northern border of Mingmei - Glit City. The family relics she is looking for are in the Attis Rift Valley on the edge of the city.
But the closer she got to the bottomless rift valley, Lachiji felt more and more lethargic, until she saw the black dragon calling himself "The Black King Getandong" in his sleep, trying to compete with her for the right to use her body.
After Lachiji defeated him in a dream, when she woke up, she found that this dragon actually existed in her spiritual world, because this dragon would chat with her in her mind from time to time, because he could share all the senses with Lachiji. Although the subsequent journey was noisy, it was no longer lonely.
This is where her story with the dragon begins.
Concept: Sword and Sorcery