>>813936
>Why is he federally mandated to have no sexual encounters with them?
He isn't anymore. He was instructed to pick one as a wife, well before the convention took place. The government is encouraging it for him just as they are generally, though they inexplicably tell him to get married while encouraging everyone else to just have casual sex.
The problem with the convention was that the manga tried to do two things at once. On one hand all the main girls are virgins and MC is supposed to pick one to be his wife. On the other hand the fuckbooths at the convention mark the manga finally giving up on pretending MGs aren't just sluts, where a guy places an order for his favourite flavour of girl, they fuck within minutes of meeting each other, and the "compatibility" of the relationship is purely a function of how good they are in the sack.