How many chapters does this have?

22 so far :)

I mean the to be complete?

We don't know since it's still ongoing manhwa with 22 chapters curently out.

I wish it end with only atkeast 35 plus chaps, I’m scared that there might be rape and other twisted situations if the manhua is too long. I’ve been traumatized by a lot of bl Korean manga already. I’m more cautios especially because there is a psycho in the story Σ(っ°Д °;)っ(￣∇￣")