Foie (フォイエ) is a basic offensive fire technique, common throughout all difficulties. It uses the photons in the air around it to generate a ball of fire, which can strike multiple targets when fully charged.
The projectile released by foie continues until hitting a target directly. Enemies grazed by it will take full damage without stopping the projectile. For this reason, it can be advantageous to use manual targeting to aim foie so that it grazes enemies along a line.