(Pic Cr: viu/tvN)
Eun Tak’s school is Seoul Choong Ang High School(중앙고등학교), it is close to Bukchon. The nearest metro is Anguk station, about 1km from the metro station.
The scene in the canteen was filmed inside Seo Un High School (서운고등학교) in Incheon, I guess it is not open for visit, so I am not providing the transport details.
The scene where Eun Tak summoned Kim Shin in a library was filmed inside Duksung Woman’s University(덕성여자대학교), I guess it is not open for visit, so again I am not providing the transport details.