When the Weather Is Fine (2020)

Both are set in winter and located in a snowy town in the countryside. They revolve around a warm store where people gather and discuss their life. They are centered around the owner of the store. Both are slow-paced with meditative, quite and peaceful atmosphere.

They capture the everyday life of the people in the countryside and discuss similar themes on family, relationships, love, loneliness and healing.

Although definitively different shows, there is a slice of life feel to both (much more present in HP). Primarily, the scenes in WTWIF that focus on the village and its people reminded me of the scenes in HP where we see the doctors and patients in the hospital interacting with each other in a way that isn't fully "necessary" to the overall plot. Both shows have a very calming effect while still dealing with heavy topics.

in the simplest similarity Hae Won is/was a teacher kinda like Ha Neul and there seems to be a backstory, but otherwise both have that cold cozy healing vibe

Okay so they have different story
BUT!!
the feeling is same
BTIMFL is a bit more on the urban life but WTWIF is based on country side but the struggle is real (SLICE OF LIFE)
i personally liked it you watch it

Male lead falls in love with female lead in school age and is "devoted" to her since then.
Female lead plays an instrument.
Shy/reserved leads, slow burn romance.

Calmness
Kind and emotional characters
First love
Self-discovery and healing
Deep and emotional male character
Seasonal transitions
People with books
Loving and waiting for someone for a long time