Phero Rune

The Phero Rune (フェロの紋章, Fero no Monshō) is a rune which appears in several titles of the Suikoden series.

Information
The Phero Rune is a rune that exerts a mysterious charm, attracting people to the bearer. The bearer of this rune, when attacked, will find men protecting them from blows if they are women, and vice-versa. Its name was inspired by the pheromone usage of insects and other such creatures.