Windows webviev App

Hello, to make it easier to change the password of a game account, I want an automatic program that will work with the website, similar to a bot. I don't know how to do it. I guess it is done with Chromium.

Website entry of the game:https://vfun.valofe.com/membership/signin?service_code=vfun&ret=http%3A%2F%2Fvfun.valofe.com%2Fmembership