This is sort of a mirror image of another prompt I submitted for this theme, Follow the Rules in Your Little White Book

The book had come to you like a gift from your guardian angel one day as you woke up from with a hangover and the withdrawal as you felt the drugs no longer in your system. You were throwing your life away more and more each day, but you couldn't stop yourself from continuing down the path of self-destruction. That is, until the little black book appeared on your bed in the morning.

Initially, you had no idea what it did, but as soon as you touched it you somehow instantly knew what it did. If you wrote a rule in there, you would be forced to comply with it, as best you could. Somehow you knew it was real, and in a moment of clarity you wrote in it for the first time.

No drinking or drugs

As you finished writing writing in it, the ink slowly faded away, and then text reappeared, not what you wrote exactly, but it was exactly what you intended when you wrote in the notebook

Rule 1: [Your name] will not willingly consume alcohol or illegal recreational drugs.

You knew deep down that it was real, but that didn't stop you from trying to go against your rule when the cravings started to set in. You tried to drink, but as soon as a glass touched your lips, your arm wouldn't move to tip your glass and drink it. You bought more drugs, but when it came time to take them, you physically weren't able to do it. In a fit of addiction withdrawal, you got out the book and tried to cross out the rule. The ink faded and nothing changed. You tried to write in it again, overriding the rule. Again, the ink faded and nothing changed. That's when you realized just how dangerous the notebook was. It could permanently enforce rules on your life, rules you couldn't disobey or undo. From then on, you kept the notebook tightly locked away in a safe under your bed.

Years later, you're a functional member of society thanks to your book. You keep it locked away almost all the time, but you've taken it out to add a few more rules to keep yourself on the right path.

Rule 2: [Your name] will not intentionally harm herself.

Rule 3: [Your name] will exercise for a minimum of one hour, at least two days a week.

There weren't very many rules in your book, because you were scared about being forced to do things in the future, but sometimes you decided that it would be more beneficial to force yourself to live a good life than to give yourself the freedom to mess up later. You kept the book away from everyone; no one even knew about the fireproof safe under your bed, let alone the book.

So how did I end up in possession of it? As soon as I touch it I know how it works, and I might be interested in using it more than you have.

Kinklist

Even though I used "you" and "I" in the prompt, I'm happy to play either role in this. Also, don't feel like your character has to be constrained by what I wrote here; feel free to come up with your own backstory for you and your book.

Please use PMs and not chat.

If this doesn't appeal to you but you think you might still be interested in playing with me, feel free to check my post history, or click here for a post with multiple options.