"I want to have your permission to court your daughter."
With that, the meter of Leonardo's anger burst, then he launched a fist to Aaron's face. Aaron saw that coming, but he didn't dare to dodge it. It is like he is telling Leonardo that he can take any challenges that will be given to him after this.
"Dad! Why did you do that?!" Nathalia was so surprised by what just happened that she subconsciously shouted at her father.
Her having that volume in her voice, really shocked Leonardo. His daughter never raises her voice like that to him. To think that she would turn up her volume like that because of what he just did to Aaron, it must mean that Aaron is already to her?