I won't claim that she has no Korean heritage, but she's def more Eastern Slav than East Asian. Her skin tone, cheek structure, eye shape, and hair type are not indicative of East Asian origin either but are consistent with someone from north of the Black Sea and west of the Urals whose great,...great grandmother was raped by a Mongol 800 years ago.
The audio is pretty crappy and she's mostly not speaking normally but her accent does sound Eastern or Northern Slav with south England undertones (if I had to guess, I'd say that she learnt to speak English from an actual English person). Unlike most East Asians, she has no trouble making the 'L' sound and you can hear a soft 'j' (y sound in English) before some vowels, which is typically Russian, altho' it does feature to a lesser extent in some other European languages.
The kicker is the juice she drinks which is a premium Russian brand called "Rich". It's ruby orange flavour, if anyone's interested.
