Military Martial arts or Freelance Martial arts

He opened his eyes and the white ceiling entered his sight, the air was slightly chilly as he reduced the temperature before he slept "Derek, I want to see you in ten minutes… wait make it eight" he heard Christopher`s voice from a speaker embedded to the wall, a grunt escaped his lips and he came down from the bed and wobbled towards the bathroom. He wore bogus pants and no top.

Brushing his teeth he raised his head and stared at the holographic mirror, his scattered hair and foamed-coated lips caused him to snicker.

Six minutes later Derek stood in a huge room, which he would even call a hall, the ceiling was so high and a strange device was at the end of the room, he looked around and noticed that the part he saw was the entrance of the device.