Yes! All the chapters are in fact on here. It's always great to buy a few chapters on lezhin to support the author- I did the same(:
link: http://www.mangago.me/read-manga/youjin/
Thanks a lot! ^~^ and I am planning on buying the chapters once I'm not poor. xD I've got like, a dollar and fifty cents to my name right now, so for now it's out of the question. /. but once I do, I'll be supporting the heck out of this author.
there's a search panel at the upper right part of the site. you can look for the webtoon you want and if it's available here, it will pop up your search.
So I started reading the manga You Jin, on Lehzin, but I'm too poor to buy the chapters (once I get more money I definitely will though) but I was wondering if they had it here, so I could read it in the mean time.