Coffee wo Shizuka ni is a Manga/Manhwa/Manhua in english language, Drama series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Hatano Takaki is a third-year in high school who can’t wait to become a “real adult”. One day, he passes by a café and finds himself mysteriously drawn to the proprietress, a mysterious woman who seems to be hiding a secret sadness. Through her, through coffee, and through his encounters with the other café patrons, he begins to taste the bittersweet feelings of love and growing up.