Shinmei-ryū

Seiken is a lost and ancient sword style from the days before even Rikudo Sennin. It's so old that it's secrets have been forgotten expect by one person. That person is Hikari Chōjin. Seiken was known for it's great speed and power. Legends say that a master can take down half an army of men on their own. All users of this style have to have superhuman speed and power. This style is focused on the philosophy of as few moves as possible to win, because the few moves you have to use the less mistakes you can make.

Trivia
This style is based off of Hiten Mitsurugi-ryū