The male protagonist has an extremely handsome face but a stern face; the female protagonist was scared to tears by the male protagonist twice when she was a child. When the heroine was a child, she was chubby, which really made the hero like her. However, the heroine was afraid that the hero would like her, so she secretly lost weight, hoping that the hero would no longer like her so much. But her success in losing weight made the hero even more interested.
And just by looking at the name, you can tell that the male protagonist and the female protagonist met over wine, and they made a deal that will be passed down from generation to generation in the fairy world.