Under the Oak Tree

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. "The more I think of you, the more lonely and isolated I become. I don't know why I can't stop, even though it's so painful."