Having met tragic fates in her past lives, Vivielle Andante enters her third life with low expectations. However, luck smiles upon her as she reincarnates as the daughter of a wealthy duke. The twist? The kingdom is in dire straits as it lacks architects to prevent its literal collapse. Despite her young age, Vivielle possesses the knowledge of generations as an architect. Can she use this expertise to reconstruct not just buildings, but also the shattered dreams of the kingdom?