There’s still another season? Episode 100 was the first one of season 3
Although I agree with the first part (they just ruin everything in the end!), this comic isn't over. .......
That's probably because of lehzin itself. Authors are usually given "slots" for certain amount of chapters every week, and for how long, depend on how well the series are doing. The terms are usually strict (i remember there was a protest from authors about this) and there are certain limitations for authors regarding their stories. For example, manhwa dark heaven faced a lot of pressure from lehzin and readers. On top of that, it wasn't that popular with GP so the authors had to change the ending and cut the story short. There are other examples on this, but i didn't remember which manhwas.
Lezhin comics are always lacking in terms of ending. For all the drama and thrill they built... it's like they just say fuck it let's end this and move on. I love the story, I really do -- but to say that the ending was unfulfilling is an understatement.