Most of Hee-do and Yi-jin's world is one walkable Jeonju neighborhood — the tunnel, the house and the comic shop sit minutes apart around the Hanok Village.
The 60m railway tunnel where Hee-do and Yi-jin confess — and where they break up in the finale.
💡 Free to walk through, prettiest with summer greenery — and it chains straight into a Jeonju Hanok Village afternoon.
The white-gate house under the streetlamp where Hee-do lives and first meets Yi-jin at night.
💡 The former guesthouse here has closed — it's an exterior photo spot in a residential alley, so keep it quiet.
The book-rental shop where Hee-do reads Full House daily, setting for several of the pair's scenes.
💡 The surrounding art village is full of cafés and craft shops — a natural half-day loop with the tunnel and house.
The hillside bus stop beside the fortress wall where Yi-jin ties Hee-do's shoelace — revisited in the finale.
💡 The bus stop was a prop — no real bus stops there. You're on the UNESCO fortress wall, so keep walking it.
The quiet east-coast beach of the episode-10 summer trip.
💡 Far emptier than Gyeongpo Beach, and the Heonhwa-ro coastal road next to it is one of Korea's most scenic drives.
Three of the five locations cluster around Jeonju Hanok Village, Korea’s best-known traditional district — which means the drama trip doubles as the classic Jeonju day: hanok lanes, bibimbap (this is its birthplace), and the tunnel-house-comic-shop loop on foot. The school scenes used a working school in Nonsan (not visitable), and Yi-jin’s rooftop room is a private home — street view only.
The Suwon fortress stop shares a neighborhood with Lovely Runner and Extraordinary Attorney Woo locations, and Geumjin Beach extends the standard Gangneung KTX day (Goblin’s breakwater, the BTS bus stop) 30 minutes further south.
Most of Twenty-Five Twenty-One was filmed around Jeonju, where the Hanbyeok Tunnel, Na Hee-do's house and the comic rental shop in Seohak-dong Art Village all sit within a short walk of the Hanok Village. Other key scenes used Paldalmun Gate at Suwon Hwaseong and Geumjin Beach in Gangneung.
It's the Hanbyeok Tunnel, a 60m railway tunnel beside Hanbyeokdang Pavilion in Gyo-dong, Jeonju, where Hee-do and Yi-jin confess and later break up in the finale. It's free to walk through and prettiest with summer greenery.
You can visit the spot — it's beside the fortress wall at Paldalmun Gate in Suwon Hwaseong — but the bus stop itself was a prop and no real bus stops there. You end up on the UNESCO fortress wall, so it's worth walking along it.
It's a real house at 50-37 Gyo-dong in Jeonju, but only as an exterior photo spot in a residential alley — the former guesthouse there has closed, so keep it quiet.
Take the KTX from Yongsan to Jeonju (about 1h50m), then a 15-minute bus or taxi to the Hanok Village. From there the tunnel, Hee-do's house and the comic shop are all within a walkable loop.