Infatuation.

A simple word to describe the aching and longing he felt on the inside. That terrible tugging of his heart, one that refused to stop.

It was like... he needed you to survive. That he needed to feel your heartbeat against his skin.

Kai Chisaki loved you. Terribly.

From the moment he lay eyes on you, he was hooked. Your beautiful eyes, those soft lips... That unique nature of yours; a hidden beauty — a gem.

Chisaki wanted you.

Your name began to fill the corners of his papers. Blood from his enemies were applied to the walls by hand, spelling out the letters of your name. A heart would accompany those messy letters, most of the time.

Unsanitary. Disgusting. Revolting. Chisaki knew that his behaviors were those things.  How could someone be so sick in love, so... messed up?

But Chisaki had never felt this way before.

He craved more of it. He wanted to experience more of that twisting feeling in his stomach whenever he saw your face in those countless pictures he ordered his subordinates to take of you.

He wanted to feel his heart thudding excitedly in his chest whenever you happened to pass by a camera he had placed up in your home.

He wanted you to love him as much as he loved you. He wanted you to be in his grasp.

Sick thoughts crowded his mind. One after one, they increased by the days.

Most of them were too gruesome to say, too horrifying. Many of them included blood.

And that was your blood.

The day that made a whole month of obsession then struck. You and only you occupied his mind now.

Chisaki decided to write you a letter.

A simple one. One that would get you to fall for him. After all, no one can resist a letter, can they? If it's well written, it's bound to snag the reader in a trance...

Dear Y/N M/N L/N,

I love you. I love your hair, your eyes, your smile, your everything. I love it so much that sometimes I dream of stealing some of that beautiful hair and framing it. After all, art should be hung up, should it not? And... sometimes I dream of crawling inside of you. Because, that means that we'd never be apart. Wouldn't you like that? To be inseparable? I'm sure that chains and a collar wouldn't work forever, so isn't that a better alternative? I want to be with you forever. I've already set up some cameras around your house. I check on you on the daily, and it always pleases me to see you. Someday, you will be mine. Our love will finally blossom. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you. I love you.

I l o v e y o u .

From, your Secret Admirer.

When you had opened your mailbox and saw that letter laying in the gloom of the mailbox, your stomach twisted. You reached out to grab it. As soon as your fingers grazed the side of it, your eyelids seemed to get heavy.

Wh... What was going on?

Then, your knees buckled beneath you.

Darkness.

When you woke up, you found yourself in a white room, devoid of anything else.

Chisaki had found you.