-Both about a cofee-ya master who helps their customers to solve their problems.
-Both cofee-ya master have somewhat a bitter/dark past
-Both have a sentimental feeling lingering with the coffee smell ...
-Both have one or two cute eye candies :p
Yasashii Jikan is more like a healing - slow pacing - slice of life - nature scenery drama; and Kohiya is a more normal type.
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.