Fill this in with your backstory

The whole plot of Persona 5 and Royal.

Kaoru's story isn't that unusual. His father knocked up his mother in a one-night stand and were wed out wedlock though by the time he was five years old, Kauro's mother walked out on them. His father was an abusive alcoholic with no prospects of getting a proper job and essentially made his son's life a living hell. Kauro's only solace were the books he'd be able to get from the library and the late-night movies when his father was passed out from a drunken stupor. Being a dumb kid he got it into his head that if he acted a certain way like those characters he saw in the moves or books then maybe his dad would love him more. After all, if his own father didn't like him then it was his fault, right?

In some ways it worked, at least he saw correlation rather than causation. There were times when his father would berate him less and wouldn't break his belongings though there were times when he would fly into a rage. There were times when Kauro would hide in his room during those bouts and he would escape further into the character that he made for himself, too young to realize that his efforts to make his father to love him were now causing him to separate from himself.

This went on until he was thirteen, when it all came to a head. One night his father became exceptionally drunk after losing his janitorial job and grew violent. He blamed his son for everything, that he was the starting point where things went wrong. Kauro locked himself in his room as his father kept pounding his door and screamed at him to "open the fuck up," eventually breaking the door down where things escalated even more. The boy felt his father's hands around his neck and felt the life being squeezed out of him as he was being suffocated. In a twist of fate, his father's pancreas burst from preexisting conditions worsened by excessive alcohol consumption and stress. His father did not survive and Kauro was taken in by his aunt's family and transferred to a different school.

For what its worth, his life did improve after that. His aunt had long tried to get custody over Kauro, but the courts ruled in his father's favor and his father did not want to let him go due to the welfare checks he was getting that were meant to be used for his son. So, in her custody he had actually had a healthy life for the first time ever, but the damage was done. Kauro acted like he was fine, putting on an act that made him popular with others around him, but in reality, it was a coping mechanism and an unhealthy one at that. It was easier to be a character; to be liked and popular, to live out someone else's life, and tell their story without having to form complicated ties and relationships. In other words, an unsatisfying hollow existence.

The only thing that he was truly passionate about were the books he read and eventually began to write his own stories at the encouragement of his aunt and post them online under the pseudonym Nevermore. However, the character that Kauro played wasn't a dedicated writer that locked himself in his room for hours or a lover of stories and literature. He was the trendy social butterfly that liked what you liked even in reality he hated it or hated you.

Life was joyless, but what was one to expect when you don't live your own life? Well, there was something strange that happened; an app with a black crown appeared on his phone and it couldn't be deleted. Out of curiosity, he opened it and was asked an interesting question. Rather than put off by this strange app he found it fascinating, like a story come to life.