Hikakin is one of Japan's best-known YouTubers, famous for his beatboxing videos and high-energy hosting style, and clips of his catchphrases circulate widely through fan-made 'kirinuki' highlight channels on YouTube Shorts. This sound comes from one of those short clips, where he delivers a dialectal version of 'yoroshiku tanomu', an everyday way of saying 'I'm counting on you'. It spread on soundboards because it works as a compact, recognisable sign-off, and it keeps getting used by creators who want a warm Japanese-flavoured punchline.