Yomeiri No Susume Taisho Onzoshi No Goin Na Propose

Ranko Hanamiya is the daughter of a noble family fallen on hard times in the Taisho era. 24 years old with no prospects, she works as a waitress at the cafe Cassiopeia when one day a handsome customer suddenly gave her a gift. Confused, she returned home to hear the news that a former family acquaintance the Viscount Chonabashi has come to fulfill the marriage promise made when Ranko was little. Ranko liked being independent and didn't want marriage, but reluctantly agreed to visit the Chonabashi house to satisfy her parents. There she found out that the man she would be betrothed to is Yoichiro, the young man who gave her the gift at the cafe?!