Interesting clip: Henya's dad is confirmed U.S. military, and he was deployed in a "war-zone" where he was unable to contact his daughter for several years
She also grew up speaking only English, but when her parents separated and she moved to Japan, she forgot how to speak English almost entirely, which caused problems when she did finally meet him again. Probably explains why her enunciation makes her seem like a native speaker, whereas her pronunciation makes it clear she still struggles with English vocabulary.
Given her age, I'm gonna guess she was born in a U.S. base as a military brat, and her dad got sent off to Iraq or Afghanistan. However, the fact that he couldn't contact his family for years, when most soldiers and officers typically get leave at least once per year, suggests that he was some kind of special forces (the badass option), or he just didn't want to see his family (the unbadass option)
Luckily, she's now in regular contact with him, and her English is...okay!
Second shot: Ceci is very girly