I'm not sure about legal places to read it for free. It's best to support the creators by using authorized platforms that might require a subscription or purchase.
I don't know of any legal place to read Jinx manga for free. Unofficial free sources can be risky and may not provide good quality. It's worth investing in a subscription to a legitimate service to enjoy the manga properly.
You can start by looking on fanfic websites like Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, including Jinx manhwa. Another place could be FanFiction.net. There are often dedicated sections for different manhwa, and you might be able to find some great Jinx - related fanfics there. Additionally, some manhwa - specific forums or communities might also have users sharing their own Jinx fanfics or recommending good ones.
Well, you could look on platforms like Tapas or Lezhin Comics. Sometimes they have free sections or promotions. But remember, always abide by the terms of service and respect copyright laws when looking for free manhwa to read.