Bakumatsu Jinchuu Houkoku Resshiden Miburo

It is the Bakumatsu era. There has long existed a mysterious sort of power... The legends say that this power awakens within a chosen person when the nation is on the cusp of fate. A person with this power can read an enemy's weaknesses like an open book, and can cut them down with a single stroke. Supposedly, the enemy's weak points are designated by tiny lights... and sometimes, bright flames ...