After this cohabitation, two pairs will be eliminated, or rather, two pairs will be put on "probation," meaning a total of four guests, two men and two women. Aside from the risk of being ranked low due to the lack of coordination in the "couple games" yesterday, there's also the issue of relationships being too bland, polite without any sparks. Also, although the previous selection of boyfriend and girlfriend was based on personal 'preferences' and 'character,' choosing without seeing the real person definitely feels like a 'blind marriage.'
It's like matchmaking; both sides have a list of criteria, and it seems like the match was tailor-made according to one's ideal partner. But eventually, whether it's suitable or not, you have to see how it goes in interaction.