Oboru no Hanayome: Karisome no Konyaku wa, Aoku, Amaku
The time is the Taisho era. Kiyoko, the eldest daughter of the former aristocratic Ichiji family, is beautiful, but because of a birthmark on her face, she is compared to her younger sister and treated like a servant by her family. Hoping to change her fate, she goes to an arranged marriage meeting, but her partner, Sakuya, is blind...!?
(Source: mechacomic, translated)