Found the answer to what I was curious about.

This is a line from the drama "Big Bet" spoken by Cha Moo-sik. It says the price of the morning buffet at the Parvio Hotel is so high that it's like a dream for locals to eat there... I was always curious about which hotel it was, where it was located, and how much it cost.

Then, by chance, I found the answer.

The place Cha Moo-sik was referring to is actually the Medley Buffet at Okada Manila Hotel.