Juuban-sama no Enmusubi: Kamiari Hanayome Kitan

A girl is kept isolated in a manor by her aunt and grandparents, forced to spend her days weaving. Her life changes when Shuuya Touri, a member of the prominent Touri clan, proposes marriage. The Touri family is known for having divine blood, yet the clan's leader appears disconnected and is regarded with fear by both family and those nearby.