The Water Blade spell was a Dao technique invented by the ancestors of the human race, with origins predating even the first Immortal Lord. Initially, Water Blade was actually Control Water, a spell used to draw water for irrigating fields. Later, people began adapting this technique to sprinkle water and cleanse courtyards during important ceremonies such as festivals and grand sacrifices. Over time, its application gradually expanded.

The first book Wei Yuan held in its hands recounted this very history.

Of course, an Immortal Lord would not write a book in the dry manner commonly seen in historical texts; he also included several corresponding spells from those early days. Thus, Wei Yuan learned Draw Water, Spray Water, and Summon Spring.

Wei Yuan kept his patience and opened the second book, finishing it in the blink of an eye. However, his expression immediately turned grim.

The second book described the earliest forms of Water Blade. In the past, when cultivators used Spray Water to remove stubborn grime, they had made the water stream increasingly fine and powerful. When a certain limit was exceeded, the water transformed into a blade capable of cleaving stone and metal.

The entire book detailed the spell structure of this most primitive version of Water Blade. The spell structure of the contemporary Water Blade Wei Yuan had learned was exquisite and intricate, its...