"Oblivion Melody," this sound technique, Zhou Ping'an had already experienced several times.
He knew that with Green Lady's current skill level, not only could she play tunes that made one forget all sorrows, but she could also reverse the effect, bringing up troublesome emotions deep within one's soul.
If one had no distracting thoughts and was a person without flaws, naturally, they would not have much of a reaction upon hearing it.
But if one's spirit was flawed, and they were two-faced, they would undeniably reveal their weaknesses under the extraordinary and direct assault of the music on their soul.
That was why he had set up this test.
Mainly because he did not want to subjectively determine the good and evil, right and wrong of others.
In his heart, he harbored a speculation that was too dreadful to utter.
Moreover, if his speculation were true, he would only have one chance.
Either he would strike to kill, or he would not make a move at all.