Codecanyon My Manga Reader CMS - v2.0 + Google Drive Extension

Please kindly help! Im panic now! Dear guys Im a super newbie to wordpress but I really want to build a manga website so I downloaded this theme. And I got stuck right at step 1. When I download the zip file (codecanyone), I go to my WP cpanel/ plugins/ add new then I upload that codecanyon zip file but I keep receiving this error message:

Unpacking the package

Installing the plugin

The package could not be installed. No valid plugins were found.

Plugin installation failed.

Return to Plugin Installer


Then I realize this is not theme or plugin, so how can I set up for wordpress? Please kindly help, it would be fantastic if anyone can show me instructions by pictures, thank you!

What should I do now? I wish the author could provide pictures installation for newbie like me! Someone please help!