A private duel was nothing like an arena match with rules and restrictions. If you got killed, you could only count yourself unlucky. Being spared by your opponent under such circumstances undoubtedly meant owing them a huge favor.
But based on Mousse's understanding of Charlotte Amande, she would probably see being spared as an attempt to humiliate her. Not only would the grudge remain unresolved, it would likely grow even deeper than before.
"Come to think of it, Kyros might not have spared Third Sister purely out of kindness. According to the plot, he should have regretted his past actions and been unwilling to kill. He might also have feared that killing Third Sister would bring retaliation from my family."
Mousse had guessed Kyros's true reason for holding back. Since he was not particularly close to Third Sister Charlotte Amande, he did not feel much gratitude toward Kyros. What concerned him more was how Kyros had defeated Charlotte Amande without seriously injuring her.
But the answer was actually very simple. Charlotte Amande had used every trick she possessed, including that inconceivable Time Sword Technique, yet she had failed to harm even a single hair on Kyros's head.
In the end, Kyros seized an opening to counterattack and used his blunt greatsword to knock her weapon flying. Even Charlotte Amande could not bring herself to claim that she had not lost.
"The gap was that huge?" Mousse could not help feeling surprised after hearing this. He had previously examined them with Observation Haki. Kyros's vitality and Haki were only slightly stronger than Third Sister's, weren't they?
How had it turned into such a one-sided fight?
Was his supporting-character aura stronger?
Or did having justice in his heart grant some kind of boost from conviction?
Yet the truth was just as simple.