Hakushaku to Ichirin no Hana

Bernadette, who longs to marry for love, is being forced into an arranged marriage by her father. Count Eduardo, her neighbor, takes pity on her and offers her a token marriage to escape the arrangement. She has a secret crush on the Count, and hoping one day to turn it into true love, she agrees to marry him. But Eduardo is a man who does not believe in love due to a past traumatic experience... (Source: Ohzora Shuppan, translated)