Stanley Corporation retrieves items at the request of its clients but sometimes the owners give difficult challenges to even just talk to Stanley Corp. They enlisted the help of Manjou Yuki, a senior in high school with 99% accuracy on a popular internet puzzle site to help them tackle these challenges. To sever the Gordian Knot is to solve the challenge in a unheard of way. Join Manjou Yuki in his exciting journey of high-risks challenges and games.