Can you curve 1 edge without adding more edges to it? I've scoured the internet for how to make a simple, single curve from 1 edge, but apparently that is some monumental task in Blender lol

Here's a picture of what I'm working on:


I'm just trying to curve the selected edge to make it match the green curve to its left

I use Blender pretty much exclusively to rig clothes to 3D models, so about anything outside of that is foreign to me, but I'm trying to slowly venture out to learn more so I can use less other programs

Anyway, is there any way to curve this lone 2D edge without having to add more edges? Everything I saw online mentioned beveling, which as far as I could discern, involved me making and selecting more edges to curve, which won't work, need the number of faces to stay the same and for it all to stay in 2D in this step

Sorry if this is a dumb question, but I seriously cannot find anything that tells me a way to curve a 2D edge, which is driving me insane. I know there has to be some way to do it, even if it's not simple for whatever reason

Thanks
Just move some of your vertices/edges around like this, if possible for your design. (Select vertice and press G) Then you keep the same number of faces and your vertices end up on the curve.  And your faces are distributed more evenly making cloth simulation more realistic.