MTL - I Have a Store In the World of American Comics - Chapter 11 and, transaction

The world of Nyil, with its monsters, its knights and its mildly sociopathic gods. Come and see! A soul flees and a soul arrives, blessed by luck. Will she survive? Will she thrive? Will she become a calamity? After all, luck is such a fickle thing. ‍

A side story series featuring the girls of Kyoukai Senjou no Horizon.

Above lies the Nine Heavens Galaxy, with its awe-inspiring celestial power, and below lies the vast earth, where ants gaze at the sky.Martial artists can communicate with stars, awaken the power of the stars, and embark on a path against the heavens.Stars can be divided into beast types, artifact types, and miscellaneous types. Among them, beast types are led by dragon stars.“You... you are actually a dragon-type star? How is this possible?” a peerless genius exclaimed in shock.Lin Feng smiled calmly, “I'm sorry, I have eight more like this!”

With the Goddess’ blessing, he became a 『Divine Knight』 and founded an Empire.
As time passed, he grows older, and by the time the heavens called for him to come, the Goddess showed before him, asking for his last wish.

He wished to be reincarnated in the future.
He dedicated all his life for his people, he had no time to master his own arts.
This time, he wishes to live for himself, forging his body to the utmost limit.

The Goddess complied with his wish.
In the far future, the King shall reincarnate as the 『daughter』 of a renowned Knight family.
And, under some circumstances, she is labeled as a failure of a Knight, however——

「How convenient. I can stand on the foremost line without needing any rank. No better training than actual combat!」

Thus, the legend of the world’s strongest, most beautiful Knight Disciple (♀) has begun—