Mushishi, Kotonoba Drive Recommendations
Both are great gems of the slice of life genre. Mushishi's about the MC, Ginko, who can see strange creatures called 'mushi'; whereas Kotonoba's MC Suu-chan has the ability to experience strange occurences around a heritage site for about 5 mins.
The striking feature in both cases is the serene, peaceful atmosphere. Try them on a rainy day and you won't regret it.