Whenever the book mysteriously vanished from its hiding place and reappeared like this, it always meant one thing—new information had been added. Sometimes it was a technique. Other times, a special skill.
This time was no different.
After flipping through a few pages, Yohan stopped.
"Meridian Tell," he read aloud. "By visually scanning a person's posture, muscle tension, breathing rhythm, and micro-tremors along key meridian points, I can instantly tell if their body is reacting to deception."
The moment he finished reading, a strange sensation surged behind his eyes. It felt as though the meaning of the words didn't just settle in his mind, but into his body itself.
"As long as I focus on their meridian points… I'll be able to tell if they're lying," he murmured.
"That's insane," he said with a quiet laugh. "I'll become a living lie detector."
It wasn't perfect, but it was more than reliable enough.
Just then, a loud knock echoed through his room.
