Guy they're talking about runs a company that "smuggles" monsters into the country via legal loophole that would otherwise make it impossible for anyone other than the government to bring them in. He provides facilities for the monsters to work so they have some real money and not be free loading burdens to their hosts and also some amenities to help them relax and keep them healthy like massages and spas. He's actually why rachnera and suu are in japan, though suu seems to have been brought in through a bit less legal means. In recent chapters suu accidentally lets another, much more giant, slime his company was transporting and kimihoto ends up having to catch it with the harem sans mero and papi because more legal loophole bullshit. Suu nearly dies in the fight against the other slime and afterwards the guy makes two offers:
1. to Rachenra to work with him managing another branch of the company. She refuses (hence the op page)
2. to Kimihoto to help at one of the farms the company owns. He actually blackmails him to accept because of the amenities the girls have taken advantage of.
Kimihoto is now on a farm that is otherwise entirely cowgirls and sheepgirls. Latest translated chapter had him help the farm set up the milking machines for the girls except Cathyl, who he milks by hand. All the other girls find out and all want to be milked by hand. He was originally there only to cook for them so their milk would be higher quailty.
Guy really hasn't done enough to earn the hate the story gives him (except proabbly from smith but she's a bitch anyways). At worst his methods are just questionable and it's the governments fault for making the exchange program such shit that this would be such a profitable endeavor. But who know, maybe there's something even worse we have yet to see.
Right now, the arc is just pretty /leftypol/ with this guy.