Shang Wan (played by Ryu Seung-Bum) is a patrolman. One day, he encountered a gangster doing evil. He stood up, but his martial arts skills were not good. In the process of chasing the pickpocket, he was unfortunately hit by the brave Eugene (played by Yoon So-yi) and fainted on the spot. Because Eugene, who accidentally injured him, used the palm wind skill - shock wave. Eugene took Shang Wan back home to recuperate. However, Shang Wan met the "Seven Immortals" here. Among them, Ziyun (played by Ahn Sung-ki) wanted Shang Wan and Eugene to inherit their martial arts. Shang Wan agreed happily considering that he would not be humiliated from now on and could become a partner with his sweetheart Eugene. When the construction team was digging a tunnel, they accidentally discovered a huge cave. The airflow bursting out of it attracted everyone's attention. A thousand-year-old skeleton was restored to a white-haired old man Heiyun. He rushed out of the cave and used the Star Absorbing Technique to replace the young body of a grocery store clerk. He began to frantically look for a key that could open the energy airflow. Only Ziyun understood the mystery. A battle between good and evil begins...