you can just search up "are you addicted book pdf". I did that and was able to download both book. Or you can…
I have started reading it, and there is a lot more context given. Their relationship seems close, but a lot of things are explained, like the handwriting part is explained and makes a lot more sense.
Finished it in one day, honestly loved the concept. Couldn't find a free eng sub of last episode so watched it raw and didn't know exactly what was happening but i could still make out the feeling and it made me cry