How to make player walking on a wire and not falling to the ground?

Hi I have a third person game and in my scene, I have a wire between 2 objects, I want my character to do a wirewalking but it keeps falling to the ground when touching the wire. I just wonder if there is a way to set up navigation to let it just walking on the wire but not falling?

Good day.

MAke a simple trick. Create a transparent “invisible” plane, like a ramp, and make it navigation static, so it will be walkable, but invisible.

Bye!