um how do you save all the manga that you've read and that you plan to read?

Below the manga, you just click on "Now reading" / "want to read" / "already read", and there it is, this beautiful site saves it for you.
Then you go to "Homepage" (by clickling your profile picture), and there you go, you can see all the manga you've saving (づ￣ ³￣)づ