Forgot to mention but I had sim!Yuma go to the grocery store and while he was on the lot, he met sim!Shu (who is non-playable in this particular game).
I thought it might be interesting to see how their interaction would go, so I had him go up and introduce himself.
Yuma started yelling at Shu because he was hot-headed which prompted Shu to berate him for his ignorance. In the end, after a lot of sour glances, they left with negative impressions of each other (their relationship bar leaned to the red zone).
Considering this is more or less how their first canon encounter went down, I’m rather amused.