At least I think she's Japanese. There might be more than just these two tickle challenges she did, but being unfamiliar with language keeps it harder to find them:
https://www.youtube.com/ watch?v=VBKMXdV_UyA
https://www.youtube.com/ watch?v=QwMJOvdTOww
https://www.youtube.com/ watch?v=VBKMXdV_UyA
https://www.youtube.com/ watch?v=QwMJOvdTOww