Hana to Sakazuki

Ayame is 25 years old. She lost her father fifteen years ago, and is now in search of the pub that she had frequented with him when she was a child. Night after night, she stops at pubs on her way home from work, and on one particular night, she happens to meet a man who might be able to help her find what she's missing...

(Source: Mag Garden, translated)