Luo Binghe understands this to be a test. Maybe Magnus doesn't even mean it as one, but he will judge Luo Binghe based on the answer, the way he will judge him by this whole conversation. It's likely that a personal answer will go over better than to say he wants to be asked about his military victories or his most impressive hunts or something like that. But while there are many personal topics Luo Binghe doesn't mind people knowing about, he's also hesitant to seem too maudlin and moody in front of someone he barely knows.

So he considers it seriously, and comes up with an answer that is true. "My mother. I rarely have the opportunity to speak of her."