This tag is to be used when a marriage takes place between the protagonist and another person simply for convenience. Note that this marriage is typically decided not by some elders, but by the concerned couple for their own mutual benefit.
The daughter of a duke, the stuttering Maximilian, married a knight of lowly status at her father’s coercion. After their first night, her husband departed for an expedition without another word. He comes back three years later, this time as a famous knight in the whole continent. How would Maximilian face him on his return?