Seiken Ago Uchi is a striking technique used in Kyokushin karate. It translates to 'Forefist Chin Strike.' In this technique, the practitioner delivers a punch with the forefist to the opponent's chin (ago). The Punch is executed with speed and precision, aiming to target a vulnerable area on the opponent's body. Seiken Ago Uchi can be used in various situations, such as in close combat or as a counterattack. Proper execution of this technique involves generating power from the lower body and transferring it through the torso and arm, resulting in a swift and forceful strike. Practitioners train in Seiken Ago Uchi to develop accuracy, timing, and the ability to deliver effective strikes in self-defense or combat scenarios.