Kim Seon-tae, previously known for his role as 'Chungju Man' on the Chungju City YouTube channel, has transitioned from public service to creating content on his personal YouTube channel. His first promotional video, showcasing a visit to Woori Bank's main branch, went viral, accumulating over 3.8 million views within just two days of its release on October 20. This rapid rise in popularity highlights the increasing influence of social media and YouTube in marketing and public engagement.

After resigning from Chungju City Hall last month, Kim launched his YouTube channel on October 3, quickly gaining a subscriber base of 1.54 million and attracting numerous collaboration offers and advertisement requests. In his video, Kim provides insights into Woori Bank's services and engages with the bank's president, Jong Jin-wan, sparking interest among viewers with questions about deposit amounts and sharing humorous anecdotes from the bank's history.

The video's quick success, crossing 1 million views within the first three hours and reaching 3.8 million within 48 hours, reflects a growing trend where individual influencers can significantly impact brand visibility and consumer engagement. This case underlines the power of digital platforms in shaping consumer perceptions and the potential for rapid audience growth in the influencer space, particularly in the financial sector where traditional marketing strategies may still dominate.