The running course of the group that On Jung-Sun (Yang Se-Jong) and Lee Hyun-Soo (Seo Hyun-Jin) are part passes through this street in episode 1 of Temperature of Love (사랑의 온도) (SBS, 2017).
Kang Han-Gyeol (Lee Hyun-woo) passes by in front of this café a several times alone or with Yoon So-Rim (Joy) like in episode 4 or 5 of The Liar and His Lover (그녀는 거짓말을 너무 사랑해) aka Lovely Love Lie (2017).
Cha Ji-An (Jang Na-Ra) chases after Lee Hyun (Seo In-Guk) here who rides in a taxi along this street in episode 1 of Hello Monster/Remember You (너를 기억해) (KBS2, 2015).
Samcheong-ro [삼청로] is the major street that traverses Samcheong-dong, Jongno-gu, Seoul.
So-Rim and Han-Gyeol quarrel in episode 4 just on the corner of Woodside Coffee (where the stairs lead to):
Woodside Coffee [우드사이드커피]
Adress: 서울 종로구 삼청로 84-1
Geolocation: 37.582943, 126.981934