IDOLLIVE Expedition: Let’s THE BOYZ(아돌라원정대 : 렛츠더보이즈)

The first guest of “Idollive Expedition” is “THE BOYZ”! THE BOYZ visited Buyeo, where is one of the city in the Republic of Korea with the remains of ancient nation “Baekje”. In Buyeo, How would they find the hint for getting the treasure that IDOLLIVE prepared for?