Lin Chen is eighteen years old. He had a heart transplant at the age of twelve, numbered S-07. From the age of thirteen, he could hear the heartbeats of everyone around him - nervous people would beat loudly, people who were lying would miss half a beat, and people who were dying were like strings that were getting thinner and thinner. He thought it was just a strange illness until that early morning when he heard someone dying outside the building, and the murderer's heartbeat was as cold as a stone without temperature. The dying informant gave him a piece of metal with two words engraved on it: Lord of the Deep. Only then did he realize that someone was looking for the heart that had been beating in his chest for six years all over the world. The Special Affairs Department of the Ministry of National Security came to visit him and called him the "Awakened One"; the mysterious Dr. Su saw the scar on his chest and whispered, "It turns out it's really you"; even his mother was deliberately concealing the origin of the heart. When your heart has its own number, when your heartbeat no longer belongs to you - Lin Chen finally understood that he was not sick, but that he was "pretended" to be involved in a game that lasted for six years.
