According to an insider, the four members of 'The Butlers' will be flying over to Vietnam to meet Coach Park Hang Seo, their newest teacher. Park Hang Seo is a soccer coach who previously led Vietnam's national team to place 2nd at the AFC U-23 Championship, causing a "Park Hang Seo Syndrome".

Meanwhile, 'The Butlers' has featured teachers such as Jeon In Kwon, Lee Dae Ho, Lee Seung Hoon, Choi Bool Ahm, and Yoon Yeo Jung so far.

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Are you keeping up with 'The Butlers' so far?