Ren's eyes flickered with a hint of excitement!
Chapter 949: The Secret of Asauchi
Over the past few days, Ren had learned from his conversations with Soken Ishida that a Death God's Zanpakuto began as an Asauchi. Every Asauchi was forged from a special material capable of holding a soul.
Once a Death God obtained an Asauchi and began using it, the Zanpakuto hidden within his soul would gradually merge with the blade. In other words, he poured part of his soul into it. After all, a Death God's Zanpakuto was part of his soul.
As his soul merged with the Asauchi, the Death God would learn his Zanpakuto's name. The Asauchi would then become his weapon for life.
The Asauchi was the body of a Zanpakuto. The stronger that body, the stronger the Zanpakuto. An Asauchi forged like a peerless famous sword would become an inherently stronger Zanpakuto. According to Soken Ishida, the nobles of Soul Society had their Asauchi made through special processes. They were still Asauchi, but far surpassed those from True Spirit Academy.
Of course, the strength of an Asauchi was only a foundation. Some powerful Zanpakuto were not constrained by it at all. Toshiro's strongest ice-type Zanpakuto, for example, had started as an ordinary Asauchi, but its power rendered that difference irrelevant.
Knowing this, Ren had no intention of settling for an ordinary Asauchi. He had been searching for materials so he could forge one himself.
The ore used to forge Asauchi was formed from souls. Like oil and coal, it lay buried deep underground and changed over time. But oil came from animal remains, and coal from plants. The material that became Asauchi ore came from souls.
Certain unusual souls were buried deep underground and, after countless years, became ore suitable for forging