Do some eventing:
During the intro, after the player picks their gender, mark it with a switch, like turn on Boy if they picked male or Girl if they picked female.
Next, make your events. Then, in the event editor, copy it. On both event pages, make them activate/show up/whatever you want by setting the gender switches in the conditionals needed. Then set the NPC's OW into the opposite gender, and change whatever you to change.
Sorry, Abnegation. I was looking in the Tutorials section when I posted it.
And thanks, Final Destination. Sorry it took so long to get back to you, I've been separated from the web for a bit.
Another issue. I've set up an event so that the Rival can "see" the player exit the house, and begin talking to the player. The issue it, if I do an "Event Touch" event that makes the Rival see the player and walk up to talk to them. The issue, however, is that this event doesn't make the Rival register as a boy if the player is a girl, or a girl if the player is a boy.
I was wondering how I could change this. If it would help, I'll try to post the events later, but it may be tomorrow before I can get to it.