This hotel appears as ‘Giant Hotel’ in Wok of Love/Greasy Melo (기름진 멜로) (SBS, 2018), owned by Yong Seung-Ryong (Kim Sa-Kwon). This is also where Seo Poong (Lee Joon-Ho) worked as the head chef of the Chinese restaurant on the 27th floor until he quits in episode 4.
Grand Plaza Cheongju Hotel [그랜드플라자 청주호텔] is a 4 star hotel located in the neighborhood Yullyang-dong [율량동] in the Sangdang District [Sangdang-gu/상당구] of the city of Cheongju [청주시]; around 2.5 hours South of Seoul by public transport.
Address: 114 Chungcheong-daero, Cheongju, Chungcheongbuk-do
충북 청주시 청원구 충청대로 114
Geolocation: 36.666517, 127.494406
— submitted by Marion KDL