The so-called nurturing of will was to accumulate and compress one's emotions into the sword. Day after day, the small amount would accumulate into a large amount, and finally, all of it would explode in one go.
The core of it was a strong emotion and will.
The karmic sinflames happened to be suitable.
Luo Yuheng's gaze swept past Chu Yuanqian's face and landed on the long sword on her back. The sword was in its scabbard, but it was already showing off its sharp edge.
How powerful would it be after it was unsheathed?
She nodded in satisfaction and patted Chu Yuanxi's shoulder again with her horsetail whisk, retracting the seven emotions and six desires that had been planted in his body.
At the level of a demigod, karmic sinflames were no longer a threat. One could even use them to fight against their enemies.