Tobari Chisa

Chisa is a stoic and seemingly-cold girl that also happens to be Takahisa's childhood friend. Though she has little patience for the fooling around of the other characters (she's usually the one to tell Kanna to quiet down), she will not hesitate to take some playful jabs at the protagonist every once in a while.
By the time the story begins, Chisa is already loaded with responsibilities between being the president of Takahisa's class, a member of the archery club, on top of working at her family's minshuku (word for a private home that offers tourist lodging). As such, she is often doing her own thing and has little time to waste. Incidentally, she and Takahisa have somewhat grown apart.