"Water Style: Great Water Hand Technique" - a hidden ninjutsu of the Hozuki clan, based on the practical application of the Hydrification Technique. The user temporarily increases and strengthens the muscles of the arm, gathering moisture from the whole body and compressing it into the limb, as if instantly pumping it up. The technique requires impeccable control of the water balance inside the body, which is why it is considered very difficult. As a result, the arm gains superhuman strength, allowing it to easily break through stone walls and steel doors.