"Next, it's time to refine the Immortal Execution Formation. A single wide short sword only has enough space to carve two formation patterns... Should I use twin short swords?" Zhu Wu pondered.
"No, formations can be nested within formations, and swords... can also be nested within swords. Parent-Child Swords!" Zhu Wu suddenly had a novel idea.
"First craft a slightly smaller one, then craft a slightly larger one to wrap around it. The two can be nested together, or separated for individual use..." Zhu Wu smiled. After resting for a day, he rehearsed this idea in his mind dozens of times.
Chapter 98