Does anyone know where I can download the epub version of this novel?

I don't have epub version, at least for all the translated chapters, but here's a website you can read it on:

https://www.google.ca/amp/s/www.mtlnovel.com/how-to-survive-as-a-villain/

https://www.novelupdates.com/series/how-to-survive-as-a-villain/

Here you can have more proper sites to look at the novel translations. On that site there are also have more novels in the list. You can check them out. Hope it helps you (づ￣ ³￣)づ