Ohariko Reijou to Koori no Hakushaku no Shiroi Kekkon

Overview

Serafina, the daughter of a viscount, has been scorned as useless by her family and had her fiancé stolen by her own sister. One day, as she tries to forget her pain by devoting herself to her beloved embroidery, she receives a marriage proposal from Alexis, the "Ice Count," who is rumored to be cold and ruthless. "A wife in name only is enough. There's no need for us to share a bed," he tells her. Serafina is surprised by Alexis's request for a 'white marriage,' but her eyes immediately light up when he adds, "If you agree, I'll prepare an embroidery room for you." Thus begins a frustratingly sweet romance that starts with a contract marriage.

Source: AniList