Wow nobody responded to this comment??Anyways I've caught up to the recent chapter (503). basically the stock market was a way for the Mc to gain control of the world. It does end if you're not into the whole financial side of things.Spoiler:As you've already read, he came back from the future. He needed money and being a financier, he choose the stock market. The story picks up once the day of advent begins. That's when people gets summoned into a "world" (plane) where they get stronger under the system's influence.