Which RO should be featured in the first romance scene for CCH3? (Patreon)

I'm busy writing the first real action scene of CCH3 (Black Bullet scene doesn't count IMO, since it's for establishing choices) but after that, I'll be diving into some social and romance scenes.

Now all of the RO paths will get equal time, but some will likely be written before others. So WHO should I make sure is included in the first update with romance scenes?