Black System

I have forgotten when I began to possess an uncontrollable ability to travel. At one point, I thought I was a young assassin who traveled from ancient times to the future. However, in the current time and space, I am just a disappointed middle-aged man. After being calculated, not only is my wife divorced, but I also carry a huge debt and am caught in a dangerous crisis.Fortunately, my goddess classmate whom I haven't seen for over 20 years has become my savior. She not only successfully secured a generous job for me, but also gave me $1 million as a reward for accompanying her on the adventure.I constantly traveled between ancient and future, gradually realizing that my ability to travel actually originated from an ancient system. With the help of my companions, I finally had a magical meeting at a node where time and space were intertwined, where two "I" individuals from different time and space had transcended time boundaries and uncovered the truth behind this ancient system.