Heilei

The Heilei (黒雷 Heirei) is a assassin guild with ties to the Shinoyama Group.

Background
The guild is made up of members of the Lei Family (雷家 Rei-ke) who are an old family of contract killers mostly based out in cities such as Shanghai, Hong Kong and Yokohama. They were a prominent guild of assassins that specialized in poisons. Though they were forced to adapt and move away from their old ways of primitive poisons and adopt new technology for their work. The latest technology they receive is supplied by the Shinoyama Group which created a unique and strong partnership.

Trivia

 * Heilei means "black lightning."