Wangchuan's eyes lit up.
The glimmer was faint, like a moon's reflection suddenly brushing across the water late at night.
"How?"
[Answer: There are two methods.] [One, natural cultivation: Complete the Kan Trigram yourself through prolonged contemplation of the moon's phases, tides, and darkness. Estimated time: tens of thousands to hundreds of thousands of years at minimum.]
Wangchuan shook his head at once.
Too slow.
Thousands of years? Tens of thousands? He could not afford to wait, nor did he want to.
"The second."
[Two, spend Demon Coins ×200 to directly complete all missing portions of the Kan Trigram.] [Includes: the laws of lunar phases, the deeper laws of tidal gravity, and the complete laws of the dark abyss.]
Wangchuan stared at that line, his gaze fixed.
Two hundred coins.
He currently had two hundred and twenty-one.
Just enough.
And just enough to clean him out.
This meant he could not max out Tchang Zu, Hsi Wu, or Shendu.
Those powers originally included in his plans, those things that would let him advance steadily, step by step, would all have to wait.
He could only pour all his resources into the Kan Trigram.
Wangchuan did not answer immediately.
His fingertips tapped lightly at his side, once, then again.
It was not hesitation. He was calculating. Calculating the cost, the returns, and whether he could bear staking everything on a single gamble.
After a moment, he spoke.
"System."
"Are you sure this is worth it?"
``` [Answer: The host's channels for acquiring Demon Coins have now greatly increased. Exchanging two hundred Demon Coins for Kan Trigram Perfection offers extremely high value.]
[Furthermore, after attaining Kan Trigram Perfection, the host's control over the authority of the moon will rise by one level.]
[At the same time, after attaining