Why do you need to use plugins when you expected the theme to have all the functionality in it? Well, according to WordPress guidelines and generally the best practice: themes are meant for presentational purpose only, while plugins provide website functionality.
The reason for this is that when you decide to update your website looks you simply change a theme without loosing your website content and additional functionality such as eCommerce or portfolio.
This theme follows this WordPress philosophy and you can rest assured your site is as future-proof as possible.
The required plugins:
Ncmaz fse core
Core plugin to create more custom fields, bookmark features, wishlis, ... and Ncmaz blocks, ...