Such a hidden gem! This show is really under the radar. You know, I've watched a lot slice of life supernatural genre but this one hooked me. So the story is about Hibara sisters, Shizuru and Mizuki. Their usual daily lives that is actually unusual. Shizuru, the elder, can clearly see spirits/ghosts while Mizuki, her younger sis, is prone to spirits and easily possessed by them and can sense spirit's presence as well although she cannot see as clear as her big sis. Due to this supernatural phenomenon, they live in their grandparents' house because their grandpa and grandma can also sense and see spiritsso they understand the situation of their grandchildren. This is also why their parents trust them. Don't forget their little cat, Mike, also recurring character and has its own episode. From this anime, you will know several japanese yokai/ghost. Each episode title refers to the yokai name so the show is episodic, one episode is not related to another episode.
Visual: decent. Probably because it's from 2007.
Music: surprisingly great for slice of life genre. OP slaps, ED soothing.
Most importantly, I really like the atmosphere, because the setting is in the small village where the background is still natural, like ricefield, pond, river, forest, etc.
I also think this anime is family friendly, however the very first episode kinda DARK but the rest is just fine and barely I found fanservice.