Loan Knight

Pressed to repay a huge debt, Might takes on dangerous missions and fights to the death. During his adventures, he meets the dragon's daughter, Shea, and after she becomes his traveling companion, the story expands to the skies, but Might's debt shows no signs of decreasing...

(Source: fukkan.com, translated)

Loan Knight was published in French by Black Box Editions, where it is included in volumes 1 and 2 of the release. The Black Box Editions release is based on the 5 volume Kanzenban edition released by fukkan.com in 2011.