To be honest, this was the first time Ye Zhen had heard of the Purple Mansion Marrow Pill.
Considering it was Pill King Shuilian's exclusive pill, it was hardly surprising.
But merely from Chen Pi's introduction, Ye Zhen had already made up his mind: he had to win the Purple Mansion Marrow Pill at auction—and he had to get two of them!
There was no other reason. Improving one's soul cultivation was simply too difficult!
Especially for Ye Zhen!
For ordinary Kings in the middle and late stages of the Palace Opening Realm, raising their Innate Soul Light by one layer generally took anywhere from several years to several decades, depending on the cultivation method they practiced and the strength of their willpower and perseverance.
Even ordinary martial artists found it difficult with their Three-colored Innate Soul Light. Ye Zhen's Four-colored Innate Soul Light was even harder to advance.
Previously, because of the Soul Refining Spirit Stealing Art within the Puppet Spirit Record, Ye Zhen had been able to refine and absorb the Innate Soul Light of other martial artists.
This was already an extremely rapid secret art for increasing Soul Power. Otherwise, Ye Zhen's Four-colored Innate Soul Light could never have reached the initial stage of the Sixth Layer Innate Soul Light in such a short time.
But if one counted the Innate Soul Light of other experts that he had absorbed and refined, the number was terrifying.
There had been nearly countless Innate Soul Lights from the early and middle stages of the Palace Opening Realm, while those from late-stage Palace Opening Realm martial artists and peak Ninth Layer Palace Opening Realm martial artists numbered at least a dozen.
Only such an ocean of Innate Soul Light had piled up to create Ye Zhen's current Four-colored Innate Soul