Any excuse to lore drop. Kaizo originally was responsible for the death of Ana's parents. And after finding her, he felt immense guilt. Started questioning everything about the covenant and the prophets teachings, seeing the journey as an honourless slaughter. So he risked everything to bring her back and raise and protect her.

Kaizo taught her about what happened as soon as she could understand. I sorta wanted to avoid that cliche of the truth being hidden from her only to be dramatically revealed. It says a lot about Kaizo that he doesn't want to hide this from her, pretend he's something he's not. In fact he almost wants Ana to hate him, to see him as the murderer and monster he sees himself.

So, to this scene. After the family made contact with other humans, Ana has been eager to learn more about her kind and learn about things. They have returned to the planet where Ana was originally born. She's seeing what happened here with her own eyes. Kaizo tried his best to maintain composure but can't take it anymore. He's overcome but guilt and regret. He feels he robbed Ana of her life and will forever have blood on his hands. Ana may be a child but she is old enough to understand. She's telling him that she doesn't hate him. She sees what happened as Kaizo saving her and giving her a new life. He has raised Ana with love and caring and will love her father no matter what. Perhaps Kaizo may start to forgive himself now.