Author's Note:

I'm getting back to writing a Blood+ story. I had one a while back, but I deleted it because I was busy. I always liked Kai in the story and I always wished he could have done more to help Saya, and I always wished that it should have been him to become Saya's chevalier, not Riku.

Anyway, this story will be Kai-centric, so it's pretty much Blood+ with him being the main character; a shounen version of the anime if you will. As well as go deeper into Kai's past; he's an adopted orphan which means he has a real father and mother. Kai won't be the only that will get the special treatment…

Summary: Kai Miyagusku has always seen himself as Saya's family member and protector, despite not being related by blood. But after an incident at the school during the evening, Kai's loyalty and humanity is put to the test like never before. Can he fight his inner-chiropteran, or will he become a raging monster? Will he protect his family from harm? And why does he feel so attracted towards Diva?

Chapter 0: Future's Chaos

Kai ran down the sidewalk late at night as people screamed in terror as many chiropterans attacked them to drink their precious blood. The sounds of deafening gunshots filled the air as the military tried desperately to kill the bat-like monsters, but there were no match as bullets did nothing to hurt them.

He clenched his fists.

"Damn it." He whispered angrily. Using his chiropteran speed, he jumped high in the air and instantly appeared on the roof of a tall building. He looked up to see a few winged chiropterans flying in the night's sky.

"David!" He shouted as he saw one carrying him in its talons. Kai pointed his handgun at the chiropteran and unleashed a small red bullet that penetrated the creature's skull and exploded. It dropped David and he quickly jumped high in the air to catch him and land safely back on the roof.

"David, are you okay?" Kai asked him. The blonde man nodded.

"Yes, have you located Saya and Haji yet?"

"Not yet, Diva's song is still echoing in my head, it's throwing off my senses." He replied.

A chiropteran climbed on the roof and lunged towards David while snarling, but Kai stood in front of it in a blink of an eye and ripped off its head with his bare hand effortlessly. Its body crumpled to the floor and his hand was dripping with fresh blood.

"I need to get you to safety." He grabbed David and jumped off the roof as more chiropterans began to climb up the building. Kai broke through a window on a sixth story building and put down David.

"I'm sorry; David, but I can't protect you." Kai said solemnly while looking at the ground. He knew how dangerous Saya would be to him if he brought him along, but at the same time, he didn't know where to take David to safely. The city was crawling with chiropterans, both normal, and the special breeds that possessed chevalier powers.

The blonde man placed his hand on his shoulder and stared into his eyes. Blue human eyes met red-slitted eyes.

"Do what you have to do, Kai. As long as Julia is safe, I don't care what happens to me. You are our only hope to save humanity, and you hold the mantle of the Red Shield now." He said with a serious tone.

"But…we've been through so much shit together; do you think I'm going to leave you here to die?" Kai replied while frowning at him.

"Kai." He tightened his grip on his shoulder.

"I know…you have to go now. This is a battle that only you can do. Promise me one thing."

"What is it?" Kai asked curiously. David gave Kai a bright smile as chiropterans began to hop onto the roof of the building.

"Start a new Red Shield and become its leader. I have faith in you, Kai."

Kai smiled and gave David a firm hug before releasing him.

"Thanks for everything, David. I won't forget you."

And with that, Kai ran off the roof of the building, knocking away a chiropteran in the process. He didn't look back as the chiropterans closed in on hapless David, even though he was pointlessly unloading bullets into the creatures that can heal bullet wounds.

Where are you, Saya?

Author's Note: This was just a teaser for what's going to happen later. Sorry for the chapter being short, the next one will be much longer. :)