There are actually several volumes in this manga. Also I am pretty sure it was turned into an Anime. Try kissanime.com for that. I will try to remember where I seen the other stories at and will post if I can recall and you are interested.
Might you be referring to this one? https://myanimelist.net/anime/2479/Dragon_Knight plot-wise doesn't seem to be the same o:
There are actually several volumes in this manga. Also I am pretty sure it was turned into an Anime. Try kissanime.com for that. I will try to remember where I seen the other stories at and will post if I can recall and you are interested.
Might you be referring to this one? https://myanimelist.net/anime/2479/Dragon_Knight plot-wise doesn't seem to be the same o: