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In a kingdom where martial arts is highly respected, Bai Xi Yao, the lord of the Long Cha Sect, and Ling Hao Xian, the leader of the Feng Qi League, participate in the kingdom's treasure hunting battle. During the battle, an energy explosion of the Heavenly Book Order caused the two rivals to switch bodies. Forced to work together, Xi Yao and Hao Xian come to understand and respect each other as they deal with the various crises in their sects. Little did they know that the two who possessed the Order of Heaven had already been targeted by the Holy Light Society, and they now begin to sense a mysterious and evil force secretly arising.

Around midnight, on the northern riverside road, a 4 car accident occurs resulting in one fatality. Coming out of a Mercedes Benz, Do-Yeop (Kim Su-Ro) & Sang-Kil (Han Jae-Seok) start to argue with married couple Sang-Do (Ryoo Seung-Ryong) & Pal-Nyeo (Jang Young-Nam). In another car there is depression support group member Yeo-Na (Shim Eun-Kyeong) & the president of the depression support group Jung-Sang (Kim Byeong-Ok). There's also an awkward father & son, Ho-Man (Song Young-Chang) & Ji-Yong (Lee Ji-Yong). They all have to go to the police station. At the police station, there's a group of people, including delivery guy Cheol-Joo (Ryu Deok-Hwan) & his friends. To identify the victim the police go through her items and attempts to load her USB flash drive onto a computer. The USB flash drive is protected by a password. The people at the police station work together to try to gain access to the USB flash drive. On the USB flash drive the answer to the 30th question from a quiz show giving out $1.3 million dollars is discovered. All the people at the police station now know the final question to the quiz show. If they can correctly answer the other 29 questions they will make a lot of money. On the day of the quiz show, all the people from the police station show up at the studio ...