Because "ordinary" college students came to Infinite Games by "chance" and met some friends to trade with others. Trading can help you do anything, but the price you pay needs to be reciprocal, at least the trader must think it is reciprocal. Never mess with a trader, because you never know how powerful he is, but traders are generally very gentle, but he is a little different, randomly dropping chapters.
Intention: Don't take it too seriously, the writing is a bit bad, and articles will be randomly dropped.