For those who have no clue who this guy is, Alexi Smith (aka
Noriyaro) is a australian man who lives in japan and making content there showcasing japanese car culture, ranging from japanese cars, drifting (his passion), and also other things like itasha (weeb painting on cars).
While he is pretty much old-school weeb, i have actually never see him interacting much with the vtubing stuff (though he does know enough to recognize Hololive and Nijisanji), so the fact that Pippa deciding to follow him and he noticed it is a surprise.