Coffee Mou Ippai
Other names: コーヒーもう一杯, En kopp kaffe till, Koohii Mou Ippai, One More Cup of Coffee
Author: Yamakawa Naoto
Artis: Yamakawa Naoto
This is a 5-volume manga series comprised of individual short stories that all have to do with coffee one way or other. Each of them is bittersweet with a philosophical bent.