In the 31st century AD, a mysterious disappearance of a teenager led young detective Shen Muen to get involved in a high-end IQ challenge program - MapleStory Tour. During the program, he met Youya, a girl with supernatural powers. During the process of the two working together to pass the test of life and death, Shen Muen discovered that Youya's identity seemed to have a hidden secret. With the exposure of Youya's identity, the truth about the use of IQ recharges for human experiments and crimes behind the MapleStory Tour emerged...
