Jiang Su has a secret: he can hear all the voices deep in the heart.
But the price he paid was - whenever he heard a thought, an "intracranial court" would automatically open in his mind, with his reason, intuition and conscience acting as jurors to forcefully decide whether the thought was true or false.
If the ruling is true, he will share all the other person's memories and emotions, and suffer the pain.
If the verdict is false, he will see with his own eyes the cruel truth that the other party tried so hard to cover up.
Ruling it as "a lie that the other party doesn't even know" - he will simultaneously possess the repressed and crazy second personality of the other party.