I have been experiencing a random novel that I did not add or haven't even seen before being added to my library a couple of times now and it is a hassle to remove them from my library one by one.
M_O_N maybe someone's using your account?
M_O_N spooky. I have the same problem before. "Cultivation"? Stories are being mysteriously recommended/add in my Library.
Littleplotter nope it is bound to my fb account using login with fb, and only i have access to it, it is a bug.
chery_cabral found the reason. it was the claim reward from the messages, the "user gifted this book ..." the section below the button says "claim reward by adding this book to your library"