According to the synopsis of the manhwa, "... The webtoon version of author Il-hwang’s popular wuxia novel, Chronicles of the Heavenly Demon." There seems to be novel. No, it's not being currently TLed. Don't know if/where the raws can be found, either.
It probably has, but unfortunately no translator or TL group can have it due to the recent K purge. The comic was still at below 5 chapters, and now it's no longer available to us. What a pity! The story was good too.
Currently reading the manhwa in Hodu and I dont understand korean on bit but still reading it anway, at the least there's images, gonna use imagination to make this make sense