Madara is the first and complete solution for building a Manga site on WordPress. It is fast, robust and extensible. Data is stored on the cloud, which you can choose from Amazon S3, BlogSpot or Imgur. Of course, you can store data on your site as well. It has modern design and features such as Responsive, Lazy Loading, Infinite Pagination, SEO-optimized and RTL support.
Admin tutorial: https://youtu.be/d-FYLmfGMhc