How do the farming of other worlds is done?

To farm a world you need to completed the most difficult mission in at least S level after that you can expend 1000 points to enter to get items from that world obviously the restrictions of what you can take out are still on but there are worlds that have items worth more than the points you paid.

The S ranker could rent the rights to farm to a guild so that they could profit without doing anything as the contract made in ditra space were imposed by it. so It was impossible to scam someone out of his rights. Obviously if the S ranker die or they give their right the contract would be voided.

Only one person can enter at time to those farm worlds so S rankers couldn't make multiple contracts.