Yes, but the methods might vary. You could use cloud storage, dedicated archiving software, or some websites that offer this functionality. Just make sure you're not violating any rules when doing so.
Basically, a story downloader operates by identifying the web page or platform where the story is hosted. Then, it employs specific algorithms and protocols to download the text and sometimes even associated media like images. Some downloaders might also handle formatting and organizing the downloaded content for better readability.
It usually involves finding an appropriate extension or plugin for Chrome. Then, you might need to navigate to a manga website and use the download function provided by the extension.