Han Seon-ah, the ‘Mad Dog’ who worked as an urban architectural designer in modern times.

She died from overwork and when she opened her eyes, she had possessed ‘Aileen,’ an extra with no significance in a popular romance fantasy novel!

She intended to live quietly, but her damn occupational hazard wouldn’t leave her alone.

After saving the overall city, including its ruined sewers, architecture, and city walls, she ended up saving even ‘Calyx Craubel,’ the villain who kidnaps the female lead in the original work.

“The one I like is you, Aileen.”

Because of that, far from escaping the villain, a death flag ended up being planted instead. Even an unimaginable, terrifying enemy is aiming for her life…

Aileen, the urban designer who confronts and does not yield to all kinds of adversity and hardships. The city, the romance, and this world too, I will redesign them all!