Sorry if I end spoiling the game, but i want to know how Ushanna affection by 30 before the festival. (Presumably the route that don't involve you killing any girls.)
No. You need to successfully fulfill the micro-tasks it gives you. If you do, you'll get a one-time scene with Usanna, and all of that increases love to 30+.
And of course, success in the "First call" mission too.
