Yuugi has clear preferences that are listed in Symposium of Post-Mysticism: strength, bravery, and honesty. Of course, those are only the ones Akyuu understands. In reality, she is also the patron girl of honor, natural mystery, and truth.
Yuugi is pleased every time I ram my head into a wall. That she likes nature and it's mysteries makes it so I can't fuck up intentionally, but honor let's me seek trouble half-intentionally. She'd abandon me if I ever gave up, but also knows the virtue of avoiding useless exertion.