1: Does your character have siblings or family members in their age group? Which one are they closest with?
With a 1 child policy in ordinance around the globe, Null was an only child.
13: Is your character bothered by the sight of blood? If so, in what way?
Null’s problem with blood is that he cant perceive his own blood as the bright blue it is. It looks red to him. This was intended by IAU (his creators) to help with his transition. If this was to fail, he’d probably freak out.
44: How easy or difficult is it for your character to say “I love you?” Can they say it without meaning it?
Being unable to harm humans also covers intentional emotional pain. He could say it in order to help fulfill his primary objective or to nonhuman species.
Other than that, Null really never knew what it was like to feel romantic or sexual love due to work constraints. He was a pretty shy kid in university.