Eat her food

You stand up and walk over to the dining table, as Nakka finishes cooking, when the food comes to you it actually looks decent, and you take a bite.

It's incredibly delicious as you gobble it up in a few seconds, "I was worried for a bit, but this was divine" you say with a smile, "Thanks, being stuck in a shrine for a while will grant a girl some talents." she replies with a smile. With that you decide it would be nicer to have her as a minion instead of an extra outfit and let her live. "Well, I have to head out." you say "Don't worry Ill come back soon!", you say as you start flying away, turning around to see her much more cheerful, waving goodbye.