DxD Vengeance

Chess battle

"Girls, meet your newest sister." Issei says as walk he walks out his room. "This is Hecate, she is my newest pawn."

Hecate walks out of the room to see five girls, the first was a raven-haired nekomata, the second a shorter blonde girl with drill-like pigtails, the third was a raven-haired fallen angel, a martial artist of Chinese descent that looks very much like Chun-Li, and lastly was a tiger girl with white hair.

"Welcome!" The girls all say in tandem. After which each of the girls all give them their names and the piece they represent.

"I also have my familiars whom you will meet in time. Right now I want you to get acquainted with your new sisters, while I continue visiting my friend. The one was planning on visiting when I bumped into you. Girls, show her a good time!"

The girls nod as Issei leaves the apartment and quickly runs to the door of Sona. He stares at the numbers on the door, 220. He knocks on the door, and after a couple of moments the door slowly opens. "Hello… What are you doing here?!"

Standing in the door was Sona Sitri, heiress to the house of Sitri. She has short black hair and large magenta colored eyes that are magnified by her large glasses. Her body, well not as big as most of the girls in Issei peerage, was still beautiful in its own right. She was wearing a simple gray shirt, that hung off of her shoulders, and a gray checkered skirt.

"Just visiting my neighbor, can't a guy visit his neighbor?"

"If you have some kind of ulterior motive then you can go away. I will not betray Rias."

"Who said anything about the Gremory heiress? I'm simply here with a proposal, I only want two things from you."

"I won't give you what you want if it means betraying my best friend."

"No, no, nothing like that. I simply want to play a game of chess and if I win you comply with my demands. If I lose then you go about your business as if I was never here."

He knew what chess meant to Sona, what was always on the line for her in a chess game. Still though he knew she could never refuse a challenge when it came to chess, the board game was her element and she was very confident in her skills. 

"Fine!" Sona finally says after a good five minutes of staring at Issei. She  steps aside allowing him to walk through the door. " Make yourself comfortable. I just finished making dinner. Would you like some  vegetable soup?"

"Yes, thank you!" Issei says as he looks around the apartment. It was very much similar to his, the dining room kitchen and living room all being one big space, with the bedroom and bathroom off to the side. The thing that differed is the way it was decorated. A large TV stand with multiple drawers and a 42 inch flat screen. A black sofa with a large coffee table in front of it and a dining table off to the side next to the kitchen. On the wall were various pictures of her with her older sister Serafall, pictures of her and Rias as children, and even a few more recent ones. 

Issei sits down on the sofa as she grabs two bowls from the kitchen cupboards. She quickly fills them both with soup and before setting them down on the coffee table. She then goes back to the kitchen," would you like anything to drink? I've got some green tea that is brewing!"

"A cup of tea would be lovely." After a moment she sets two mugs on the table. The one in front of Issei was just a simple white mug, but the one in front of Sona was a mug with a red maned unicorn on the front. Not something Issei pictured her having but the red main was the color of  Rias's hair. Sona goes to the TV stand and pulls out an ornately carved wood box from one of the drawers.

Upon opening the box it is revealed to be an ornately carved wooden chess set. The white pieces resembled angels, while the black pieces resembled that of the devils. "Black or white?"