Do What You Want

Cassie and Jet soon returned to the Chain Breaker. Sunny had explained the basic information about the loop to Nephis by then — however, he kept the things Wind Flower had told him to himself, for the time being.

Not because he was reluctant to share the knowledge, but simply because he did not want to repeat it all for the second time once they reached Effie. 

The cohort set out to the far side of the island without any delay. As they traveled, made weapons, fought abominations, and hid in the forest to wait out the more harrowing ones, Sunny couldn't help but think about Wind Flower…

And the oath he had made.

'Kill her…'

Sunny's Flaw did not compel him to fulfill any oaths… it just prevented him from making an insincere one. Still, he was free to change his mind at any moment. 

'Can I kill her?'

Of course, he could. However, it would be an understatement to say that Sunny was reluctant to.