I had to release Koharu, but I was really busy and I could'nt finish her, so I release this request, she looks really nice here in HS2, requirements are the same:
Bepinex
Bepis Plugins for HS2
Resource Redirector
HS2API
HS2ABMX
Material Editor for HS2
Overlay Mod for HS2
BonesFramework for HS2
HeadBundleRedirect for HS2
Hanmen Shader 2.0 or higher (optional)