In a world where Titans never existed, Y/N is a noblewoman trapped in a life of luxury and an arranged engagement. Longing for adventure, she sneaks into the underground city, where she meets Levi Ackerman, a hardened soldier. Despite their contrasting worlds, a connection sparks between them. Y/N's secret excursions lead to a scandal, and she chooses love and freedom over her privileged life, joining Levi in the underground.
As they navigate the harsh realities of the underground and the rebellion against a tyrannical government, Y/N and Levi's bond deepens. Together, they face betrayal, uncover hidden truths about Y/N's family, and take part in daring missions. Their love strengthens as they confront dangers and fight for a better future.
In a climactic battle, the rebellion overthrows the corrupt government, but not without sacrifice. Y/N and Levi, now united in both love and purpose, look forward to rebuilding their world together, embracing a new beginning filled with hope and freedom.