Haruka nodded when he told her about the familial aspect to Squad 10. If she drew on her own familial experiences, she's still be calling him by his family name. But, he seemed to be uncomfortable with that, so she would be sure to follow his request. "Alright, Hi...Hikari." she followed him at his signal. 

"Do you think that something is attracting them there? Well...aside from the free buffet." she asked as they traveled.