The system ignored Bai Shu's anger, its cold electronic voice sounding as usual.
[Ding. The system has detected that the host's Martial Soul Evolution requirements include spatial-temporal attributes. The system's recommendation was correct.]
"Spatial-temporal attributes?"
The ferocious expression on Bai Shu's face froze as he suddenly thought of something. He immediately summoned his martial soul again.
This time, his gaze first fell upon the nine lotus leaves beneath the green lotus. Looking at the five leaves that had changed color and recalling the system's words, Bai Shu immediately formed a suspicion.
"System, besides the ultimate five elements and space-time, does my martial soul evolution also require two other attributes?"
[Ding. This search will consume one hundred Luck Value. Confirm?]
"...Yes."
Bai Shu's mouth twitched fiercely. He had gained an even deeper understanding of the system's money-grubbing logic. Still, the evolution path of his martial soul was of utmost importance. It was better to figure it out early than take detours later, so he could only grit his teeth and accept the expense.
As always, the system's answer was concise and swift.
[In addition to Spirit Rings with ultimate five-element attributes, the host also requires Spirit Rings with spatial-temporal and yin-yang attributes. The latter two do not need to be ultimate attributes.]
Staring at the clear words on the system panel, Bai Shu fell into a long silence.
"Yin and yang... I should have thought of that. How could chaos possibly be born from only the five elements? Sigh... the difficulty has really been maxed out now."
He did not ask the system whether Douluo Continent had Spirit Beasts with yin-yang attributes. After all, since the system had not provided any clues before, even if such Spirit Beasts truly existed, they would most likely be