Even then, however, Kiritsugu still underestimated the man named Kotomine Kirei.

Kiritsugu’s sudden acceleration was a simple miscalculation that caused Kirei’s roundhouse kick to go off the mark. His speed, however, was not so nimble that Kirei was unable to grasp it. Once he realised that Kiritsugu had doubled his speed, Kirei made the appropriate calculations.

Kiritsugu experienced surprise for the second time in a few short seconds.

The space between them was a little over five steps. The tall Executor took a slight step forward, shortening this seemingly safe distance. This step, which sneaked toward the enemy without announcing its speed, was called ‘the moving stance’. It was also one of the dangerous secret skills of Baji Quan.

Kiritsugu shuddered, as the tall, frock-clad figure glided forward. Kirei's reached Baji Quan's optimum distance, and his fist drove toward toward the enemy with the power to reach infinity in all eight directions.

Kirei stepped forward. The concrete floor boomed under the impact, and the heavily planted forward fist slammed into Kiritsugu’s chest like a rock. Using the ‘Eight Postures of the Buddha Guards’ style, the sheer force of Kirei’s strike was like a grenade exploding in Kiritsugu's chest. Kiritsugu’s body, which took the full force of the blow, flew through the air like a strand of hay, and slammed into the support pillars that crowded the room. He never had the chance to defend himself. His thoracic cavity crumpled beneath Kirei’s iron fist, and his lung and heart were pounded into a mash of meat.

Kirei sighed slowly, fist still outstretched, the feel of death on his hand. Even this fight to the death, in which every second mattered, had taken only a moment to decide the victor. He experienced an emptiness that he had never felt before the moment he attained victory. This had originally been an end that he had pursued with a crazed fervor.

- Fate/Zero: Act 16, Part 6