To use this script You must write Your csrf_token from MAL in it
Take a note that at this moment script doesn't support rewatching/rewatched shows (It will take the newest date of the last watched ep)
Instruction how to prepare and run the script:
Open Dev Tools (Right Mouse Button and Inspect Element or just F12)
Choose "Network" Tab
Go to "Edit Details" of random Anime from Your list
Don't change anything, just click "submit"
In the "Network" tab find "Edit" with Method "POST", then click it (click the 'Edit' text)
In the header section scroll down until You see csfr_token
Copy the whole token and paste it in the right place in the code (search for "paste here" in the code)
Turn on the script, change to Console in Dev Tools, then go to https://anime.plus/ and write Your MAL profile name
After your data got loaded, go to history of anime, and the script will inform you about the start in the console
Let the script work, it will gather data about dates, then redirect you to random anime (from your list) edit detail site, and then it will continue the work
After the console messages stop appearing, check in the "Network" tab if all the requests got status 200
Check the dates
Enjoy
Script tested on Tampermonkey
ps. The process might take a while, so please - be patient. btw: Sorry for my bad english...
