Jennifer looked at her, having to smile sadly, shortly before reciprocating the hug that Charlie was willing to give her. The Asian teen didn't have any siblings growing up, having to be an only child, adopted into a household that practiced different traditions from her birth kin; a Chinese child, taken in and educated by a Japanese family. Really to keep them protected, Jennifer isolated herself from them; to prevent panic and concern for their daughter. At this point, they probably think she was dead. 

Raphael silently watched the interaction between the two teenaged girls.
Jennifer's hug was firm; one that told Charlie that she was in safe hands. "With them, I'll teach you, if you let me".